CN207330478U - A kind of system for fluidizing state subregion iron powder processing waste water - Google Patents
A kind of system for fluidizing state subregion iron powder processing waste water Download PDFInfo
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- CN207330478U CN207330478U CN201720624874.3U CN201720624874U CN207330478U CN 207330478 U CN207330478 U CN 207330478U CN 201720624874 U CN201720624874 U CN 201720624874U CN 207330478 U CN207330478 U CN 207330478U
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Abstract
The utility model provides a kind of system for fluidizing state subregion iron powder processing waste water, include reactor, separator, iron powder cleaning device, the Gua Ni areas being sequentially communicated are equipped with reactor from the bottom to top, primary reaction zone, primary reinforcement reaction zone, secondary reinforcement reaction zone, solid-liquid displacement zone, Gua Ni areas water inlet is connected with influent waste water pipeline, solid-liquid displacement zone is connected with separator by the road, separator also respectively by the road with wastewater effluent mouth, iron powder cleaning device is connected, iron powder cleaning device also respectively by the road with secondary reinforcement reaction zone, Gua Ni areas water outlet, influent waste water pipeline is connected.System provided by the utility model, realize the uniformly mixing of iron powder and waste water, precipitate and the integrated reacting of reuse separates, solve the shortcomings that iron material fixed bed is easy to be passivated in hardened, traditional micron of iron processing method iron particle skewness and is easy to be lost in, it also avoid excessive using Nanoscale Iron cost and the defects of be not easily recycled.
Description
Technical field
The utility model belongs to the technical field of wastewater treatment, be related to it is a kind of fluidize state subregion iron powder processing waste water be
System.
Background technology
In recent years, it is such since the fast development of the industries such as mining industry, metallurgy, chemical industry, medicine, industrial wastewater discharge wantonly
The features such as toxic big, metabolism of waste water slowly, easily accumulates, biodegradability is poor, irreversible, serious polluted surface water and underground water, lead
Industrial pollution event is caused to take place frequently.
Metallic iron as a kind of environmentally friendly reducing agent, its applied to Water Environmental Pollution Control obtain more concern and
Using.Its reaction usually carries out at normal temperatures and pressures, has the energy consumption low, efficient to contaminant degradation and can degrade at the same time a variety of
The features such as pollutant.
In zeroth order iron material, it is main report and application have colored iron plane, all kinds of iron charcoal sintered bodies, iron carbon complex, iron filings,
Micron iron powder, nanometer iron powder etc..Its grain diameter and size cover Centimeter Level to nanoscale etc..For larger iron particle or iron
Wood shavings, by iron material accumulation or structuring, the iron material fixed bed of formation is reaction unit to be applied main at present.Such as patent
" the technique for treating industrial wastewater and set that a kind of upward flow Zero-valent Iron class Fenton-biofilter integrates that CN105502817 is provided
It is standby ", it spends filtering layer to complete Zero-valent Iron class Fenton's reaction using the iron plane that thickness is 1m.Using iron material fixed bed as in main inventive
The patent of appearance also has CN102807272, CN102951719, CN1935680 and CN101734826 etc..Such fixed bed is due to making
Iron material surface is oxidizable during, forms amounts of insoluble iron oxide, easily deposits in fixed bed, after longtime running, cause
The blocking of fixed bed reactors and short stream, reduce inside reactor mass-transfer efficiency, seriously affect treatment effect, reduce the profit of iron
With rate.
Nano zero valence iron is because having larger specific surface area and higher reactivity, it is in organic matter and heavy metal pollution
The application of reparation obtains extensive concern.As patent CN103112918 provides " a kind of integral process for handling waste water ", its profit
With absorption/redox characteristic of nano zero valence iron, heavy metal contaminants are transferred to nanometer zero in reaction zone from water body
Valency iron particle surface, realizes the removal of heavy metal pollution in wastewater thing.Using nano zero valence iron as BROAD SUMMARY patent also
There are CN1041002107, CN101857295, CN101857295, CN102897889, CN103253757 and CN102942242
Deng.But Nanoscale Iron in the application there is also cost it is excessive and prepare, transport and application process in easily aging the problems such as.
The drawbacks of to overcome iron material fixed bed and nano zero valence iron, patent CN102795690 provide " a kind of ultrasonic strong
Change the method for micron order iron-copper bi-metal particle processing waste water ", such a method is mainly made at iron-copper bi-metal particle using ultrasound
In fluidized state, to improve reactor mass-transfer efficiency, solve the problems, such as that fixed bed is easily hardened and nano zero valence iron cost is excessive.
But there is also many problems, though the method realizes a micron iron fluidization, iron copper particle is also easy to run off under fluidized state,
So that the consumption of iron greatly increases, processing cost improves；Serious cavitation corrosion easily occurs in acid condition for ultrasonic probe, influences
Its service life and treatment effect；Ultrasonic technique is limited in many of scale engineer application, it is difficult to engineering application.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide one kind to fluidize state subregion iron powder
The system for handling waste water, is uniformly distributed the thin iron powder in fluidized state in the differential responses region of fluidisation state iron powder reactor,
Make fluidisation state iron powder that under the action of the pusher stirring of axis stream, the pollutant in waste water are transferred to fluidisation state iron powder table with waste water
Face, then inhaled by the magnetic force of the gravitational settling effect of solid-liquid displacement zone, the crown_interception of suspension Ball-type packing and iron separator
Draw, gravitational separation effect, iron powder is separated with processing water, flows back after then being cleaned to iron powder, realizes the interior of iron powder
Circulation, improves the utilization rate of iron powder, and effectively, persistently waste water is handled.
In order to achieve the above objects and other related objects, the utility model provides a kind of fluidisation state subregion iron powder processing waste water
System, include reactor, separator, iron powder cleaning device, be equipped with what is be sequentially communicated in the reactor from the bottom to top
Gua Ni areas, primary reaction zone, primary reinforcement reaction zone, secondary reinforcement reaction zone, solid-liquid displacement zone, Gua Ni areas water inlet with
Influent waste water pipeline is connected, and the solid-liquid displacement zone is connected with the separator by the road, and the separator also divides
It is not connected by the road with wastewater effluent mouth, iron powder cleaning device, the iron powder cleaning device is also distinguished strong with two level by the road
Change reaction zone, Gua Ni areas water outlet, influent waste water pipeline to be connected.
The fluidisation state iron powder refers to the ferrous powder granules in fluidized state, i.e., ferrous powder granules in reaction of high order area by pushing away
Stirred into formula, ferrous powder granules is formed fluidized state in flowing water stream, concrete outcome is shown in Fig. 2.
Preferably, the first water distributing plate, the primary reaction zone and level-one are equipped between the Gua Ni areas and primary reaction zone
The second water distributing plate is equipped between reinforcing reaction zone, the 3rd cloth is equipped between the primary reinforcement reaction zone and secondary reinforcement reaction zone
Water plate.
It is highly preferred that the open pore size on first water distributing plate is 1~2mm.
It is highly preferred that the open pore size on second water distributing plate is 2~3mm.
It is highly preferred that the open pore size on the 3rd water distributing plate is 3~4mm.
It is highly preferred that the percent opening on first water distributing plate, the second water distributing plate, the 3rd water distributing plate is 50~70%.
Preferably, the gradient that angle is 20-40 ° is formed between the side in the Gua Ni areas and horizontal plane.The Gua Ni areas
In the cone that cone is downward.
Preferably, the madial wall in the Gua Ni areas is equipped with mud scraper.The mud scraper is conventional use of peripheral-traction
Formula mud scraper, commercially available acquisition.
Preferably, the ratio between height between the primary reaction zone, primary reinforcement reaction zone, secondary reinforcement reaction zone is 5:
4:3~7:5:3.Specifically such as, the height of the primary reaction zone is 2.4~3m.The height of the primary reinforcement reaction zone is 1.8
~2.4m.The height of the secondary reinforcement reaction zone is 1.3~1.8m.
Preferably, the ratio between height between the primary reaction zone and Gua Ni areas is 3:1~4:1.Specifically such as, Gua Ni areas
Highly it is 0.5~1m.
Preferably, the ratio between height between the solid-liquid displacement zone and secondary reinforcement reaction zone is 2:1~3:1.Specifically such as,
The height of the solid-liquid displacement zone is 2~3m.
Preferably, the secondary reinforcement reaction zone, primary reinforcement reaction zone, primary reaction zone, the diameter of Gua Ni areas bottom surface
(D1) equal.Specifically such as, the secondary reinforcement reaction zone, primary reinforcement reaction zone, primary reaction zone, the diameter of Gua Ni areas bottom surface
(D1) it is 2~5m.
Preferably, the solid-liquid displacement zone from top to bottom includes the first section, the second section, second section successively
Side and horizontal plane between formed angle be 30-40 ° the gradient.
It is highly preferred that the diameter ratio between first section and secondary reinforcement reaction zone is 3:2~2:1.Specifically such as,
Diameter (the D of first section2) it is 4~6m.
It is highly preferred that the top surface of second section is equal with the diameter of first section, the bottom of second section
Face is equal with the diameter of the secondary reinforcement reaction zone.
Preferably, the top of the solid-liquid displacement zone is equipped with multiple spherical packing layers that suspend.The spherical packing layer that suspends
Thickness be 10~20cm.
It is highly preferred that the spherical packing layer that suspends is in series by multiple suspension Ball-type packings through cord, the cord
Both ends are separately fixed at the correspondence both sides madial wall of the solid-liquid displacement zone.The material of the cord is steel.
It is further preferred that the suspension Ball-type packing is the lamination exhibition described in Chinese invention patent ZL01112857.7
Open type filler.Filler model ZYZX, is produced by Shanghai Zhongyao Environmental Protection Industrial Co., Ltd..
It is further preferred that the dosage of the suspension Ball-type packing accounts for the volume of the first section in the solid-liquid displacement zone
Percentage is 10-30%.
Preferably, the lateral wall at the top of the solid-liquid displacement zone is equipped with artificial cleaning platform.
Preferably, the madial wall at the top of the solid-liquid displacement zone is equipped with downflow weir, and the effluent trough of the downflow weir is through pipe
Road is connected with the separator.
Preferably, agitating paddle has been further included in the reactor, the agitating paddle is axis stream push type agitating paddle, described to stir
Mix paddle and include agitating shaft, the agitating shaft from top to bottom sequentially passes through the solid-liquid displacement zone, secondary reinforcement reaction zone, level-one
Strengthen reaction zone and go deep into the primary reaction zone, the agitating shaft side wall is equipped with least one first blade, at least one
A second blade and at least one 3rd blade, first blade are arranged in the primary reaction zone, second blade
It is arranged in the primary reinforcement reaction zone, the 3rd blade is arranged in the secondary reinforcement reaction zone.
It is highly preferred that the agitating paddle is circumscribed with stirring motor, the stirring motor is used to drive the blade on agitating shaft
Rotation.
It is highly preferred that first blade, the second blade, the 3rd blade are axis stream push type blade, for making blade
Discharge opeing direction it is parallel with agitating shaft.
It is highly preferred that the speed of agitator of first blade, the second blade, the 3rd blade is 40~200rpm.
It is highly preferred that the mixing speed gradient (G values) of first blade, the second blade, the 3rd blade for 200~
400s-1。
It is highly preferred that diameter (the d of first blade1) it is 0.4~0.5D1, first blade to the first water distributing plate
Vertical range is 1.45-1.55 times of (1.45-1.55d of the diameter of first blade1).It is further preferred that described first
The vertical range of blade to the first water distributing plate is 1.5 times of (1.5d of the diameter of first blade1)。
It is highly preferred that diameter (the d of second blade1) it is 0.32~0.38D1, second blade to the second water distributing plate
Vertical range for second blade diameter 1.25-1.35 times of (1.25-1.35d1).It is further preferred that described
The vertical range of two blades to the second water distributing plate is 1.3 times of (1.3d of the diameter of second blade1)。
It is highly preferred that diameter (the d of the 3rd blade1) it is 0.25~0.30D1, the 3rd blade to the 3rd water distributing plate
Vertical range for the 3rd blade diameter 1.05-1.15 times of (1.05-1.15d1).It is further preferred that described
The vertical range of three blades to the 3rd water distributing plate is 1.1 times of (1.1d of the diameter of the 3rd blade1)。
Above-mentioned D1For secondary reinforcement reaction zone, primary reinforcement reaction zone, primary reaction zone, Gua Ni areas bottom surface diameter.
Preferably, on the influent waste water pipeline, along water inlet direction successively be equipped with feed water flow gauge, inlet water lifting pumps, into
Water control valve.
Preferably, the pipeline between the solid-liquid displacement zone and separator is equipped with the first outlet water control valve.
Preferably, the pipeline between separator and the wastewater effluent mouth is equipped with the second outlet water control valve.
Preferably, the pipeline between separator and the iron powder cleaning device is equipped with the first recycling iron control valve.
Preferably, the pipeline between the iron powder cleaning device and secondary reinforcement reaction zone, which is equipped with, mends iron control valve.
Preferably, the pipeline between the iron powder cleaning device and Gua Ni areas is equipped with the second recycling iron control valve, described
Recycling iron elevator pump is additionally provided with pipeline between second recycling iron control valve and iron powder cleaning device.
Preferably, the pipeline between the iron powder cleaning device and influent waste water pipeline is equipped with cleaning waste water control valve.
Preferably, the separator is conventional use of magnetic separator, commercially available acquisition.Specifically such as,
The FerroClean I magnetic separators produced by FerroClean companies.The magnetic separator utilizes the magnetic force of permanent-magnet material
Effect, realizes the separation to iron particle in waste water.
Preferably, the iron powder cleaning device is equipped with ultrasound part and cleaning part along wastewater effluent direction successively, described
Ultrasound portion lease making pipeline is connected with cleaning part split-phase.
It is highly preferred that the ultrasound portion is divided into supersonic wave cleaning machine.The supersonic wave cleaning machine is conventional use of ultrasound
Ripple cleaning machine, commercially available acquisition.
It is highly preferred that the cleaning part is divided into the container for being built-in with nozzle.The container for acid-alkali-corrosive-resisting glass or
Plastic containers.The cleaning part is successively passed through acid solution by nozzle, water cleans the ferrous powder granules after ultrasound.
Above-mentioned pipeline is the plastic piping of acid-alkali-corrosive-resisting.
Preferably, the particle diameter of the iron powder used in the reactor is 0.5~100 μm, and specific surface area is 0.01~3m2/
g.The iron powder is realized by specific axis stream push type stirring action, the effect of reactor limited separating and gravity sieving actoion
Differential responses region has different-grain diameter in reactor.
It is highly preferred that the particle diameter of the iron powder used in the primary reaction zone of the reactor is 50~100 μm, specific surface area
For 0.01~0.08m2/g。
It is highly preferred that the particle diameter of the iron powder used in the primary reinforcement reaction zone of the reactor is 10~50 μm, compare table
Area is 0.08~0.2m2/g。
It is highly preferred that the particle diameter of the iron powder used in the secondary reinforcement reaction zone of the reactor is 0.5~10 μm, compare table
Area is 0.2~3m2/g。
Preferably, the iron powder concentration used in the reactor is 10~80g/L.
Preferably, residence time of the waste water in reactor is 2~8h.
Preferably, the pusher stirring of axis stream is carried out by agitating paddle in the reactor.So that iron powder fluidisation and and waste water
Contact, is handled.
It is it is highly preferred that anti-by the pusher stirring of axis stream of the first blade, the primary reinforcement in the primary reaction zone
Answer pusher by the axis stream of the 3rd blade by the pusher stirring of axis stream of the second blade, the secondary reinforcement reaction zone in area
Stirring so that iron powder fluidisation and and waste water, handled.
It is highly preferred that the speed of agitator of the agitating paddle is 40~200rpm.
It is further preferred that the speed of agitator of first blade, the second blade, the 3rd blade is 40~200rpm.
Preferably, the return time that the ferrous powder granules are passed back into iron powder cleaning device by Gua Ni areas water outlet by the road is
5~10min, reflow time interval are 1~3h.
Preferably, cleaning part successively successively carries out ferrous powder granules pickling, washing in the iron powder cleaning device.
It is highly preferred that the pickle that the pickling uses is hydrochloric acid and the mixed solution of sulfuric acid.
It is further preferred that the ratio between molar concentration of hydrochloric acid and sulfuric acid is 2 in the pickle:1~5:1.
It is further preferred that the pH of the pickle is 1~3.
It is highly preferred that the time of the pickling is 30~60min.
It is highly preferred that the water lotion used of washing is water.The water is tap water.
It is highly preferred that the time of the washing is 30~60min.
Preferably, the iron powder amount of supplement is 0.6~2kg/ weeks in the secondary reinforcement reaction zone.It is highly preferred that described two
The iron powder amount that level strengthens supplement in reaction zone is 0.8~1kg/ weeks.
Preferably, in the above method, the pH of the waste water is controlled between 3~7, and reaction temperature is room temperature.The room temperature
For 20~30 DEG C.
As described above, a kind of system for fluidizing state subregion iron powder processing waste water provided by the utility model, utilizes specific ruler
Very little and specific surface area iron powder handles waste water, it passes through the stirring of specific axis stream propelled machine and restricted point of reactor
Area acts on so that iron powder is in fluidized state and is uniformly distributed in reactor, realizes that iron powder is mixed with the uniform of waste water, by anti-
Answer device bottom to scrape mud portion collection deposition iron powder, the iron powder of outflow reactor is collected by separator, is cleaned and filled by iron powder
Put the regular reflux that iron powder in refluxing reactor, is realized after cleaning.The system realize the uniformly mixing of iron powder and waste water,
Precipitation and the separation of the integrated reacting of reuse, solve iron material fixed bed and are easy to be passivated hardened, traditional micron of iron processing method
Middle iron particle skewness and the shortcomings that be easy to be lost in, it also avoid excessive using Nanoscale Iron cost and the defects of be not easily recycled.
Have the advantages that：
(1) average grain diameter is selected to be 0.5~100 μm, compare surface relative to traditional iron material fixed bed, the utility model
Product is 0.01~3m2The thin iron powder of/g, each reaction zone are abundant by specific axis stream propelled machine stirring action iron particle
Fluidisation, drastically increases pollutant in its surface mass-transfer efficiency.
(2) relative to traditional micron iron processing method, the fluidisation state iron powder reactor in the utility model is using vertical
Subregion, waste water from bottom to top successively by three primary reaction zone, primary reinforcement reaction zone, secondary reinforcement reaction zone reaction zones,
Each reaction zone is equipped with the axis stream push type agitating paddle of the water distributing plate that percent opening is 50~70% and specific dimensions so that iron particle
It is uniformly distributed in whole reactor.
(3) relative to traditional micron iron processing method, the utility model is by controlling the paddle of the agitating paddle of each reaction zone
Leaf radius and height, are changed in gradient by the average grain diameter of gravity sieving actoion reaction zone, reactor iron particle particle diameter
Reduce step by step, specific surface area increases step by step, and reaction efficiency improves step by step, realizes waste water subregion intensive treatment.
(4) stirred relative to traditional iron material fixed bed processing method, the utility model using axis stream propelled machine
Acted on limited separating so that fluidize the mutual collision friction of state iron particle in reactor, iron particle is not easy to assemble blocking, subtract
Passivating process is delayed, has solved the problems, such as that iron material Rapid deactivation is hardened in fixed bed.
(5) relative to traditional micron iron processing method, solid-liquid displacement zone, suspension ball are respectively provided with the utility model
Shape packing layer and separator, by gravitational settling, surface retention and magneticaction, can effectively recycle the iron for flowing out reaction zone
Powder；Meanwhile set iron powder to flow back in the Gua Ni areas of reactor bottom, and it is 5~10min by controlling return time, return time
At intervals of 1~3h, realize that reaction unit continuous-stable is efficiently run, improve the utilization rate of iron, effectively saved and be processed into
This.
(6) Zero-valent Iron used in the utility model is micron-sized iron powder, and compared to Nanoscale Iron, cost significantly drops
Low, compared to iron material fixed bed, treatment effect is substantially improved, and the axis stream propelled machine stirring used in the utility model,
Energy consumption is low.
Brief description of the drawings
Fig. 1 is shown as a kind of structure diagram of the system of fluidisation state subregion iron powder processing waste water of the present invention.
Fig. 2 is shown as the fluidized state signal of iron powder in a kind of system of fluidisation state subregion iron powder processing waste water of the present invention
Figure.
Reference numeral
1 reactor
11 Gua Ni areas
111 mud scrapers
12 primary reaction zones
121 first water distributing plates
13 primary reinforcement reaction zones
131 second water distributing plates
14 secondary reinforcement reaction zones
141 the 3rd water distributing plates
15 solid-liquid displacement zones
151 first sections
152 second sections
The 153 spherical packing layers of suspension
154 downflow weirs
1541 effluent troughs
155 artificial cleaning platforms
16 agitating paddles
161 agitating shafts
162 first blades
163 second blades
164 the 3rd blades
17 stirring motors
2 separators
3 iron powder cleaning devices
4 influent waste water pipelines
5 wastewater effluent mouths
61 feed water flow gauge
62 inlet water lifting pumps
63 water inlet control valves
64 first outlet water control valves
65 second outlet water control valves
66 first recycling iron control valves
67 mend iron control valve
68 second recycling iron control valves
69 recycling iron elevator pumps
610 cleaning waste water control valves
Embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Please refer to Fig.1-2.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to
The revealed content of specification is closed, so that those skilled in the art understands and reads, being not limited to the utility model can
The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in the utility model institute
The technology contents of announcement are obtained in the range of covering.Meanwhile in this specification it is cited as " on ", " under ", "left", "right",
The term of " centre " and " one " etc., is merely convenient to understanding for narration, and is not used to limit the enforceable scope of the utility model,
Its relativeness is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, the utility model provides a kind of system for fluidizing state subregion iron powder processing waste water, include reactor
1st, separator 2, iron powder cleaning device 3, the Gua Ni areas 11, primary anti-being sequentially communicated are equipped with the reactor 1 from the bottom to top
Area 12, primary reinforcement reaction zone 13, secondary reinforcement reaction zone 14, solid-liquid displacement zone 15 are answered, 11 water inlet of Gua Ni areas is with giving up
Water inlet pipeline 4 is connected, and the solid-liquid displacement zone 15 is connected with the separator 2 by the road, and the separator 2 is also
It is connected by the road with wastewater effluent mouth 5, iron powder cleaning device 3 respectively, the iron powder cleaning device 3 is also respectively by the road with two
Level strengthens reaction zone 14,11 water outlet of Gua Ni areas, influent waste water pipeline 4 and is connected.
In a preferred embodiment, as shown in Fig. 2, the fluidisation state iron powder refers to the ferrous powder granules in fluidized state,
I.e. ferrous powder granules are stirred in reaction of high order area by push type, ferrous powder granules is formed fluidized state in flowing water stream.
In a preferred embodiment, as shown in Figure 1, being equipped with the first cloth between the Gua Ni areas 11 and primary reaction zone 12
Water plate 121, is equipped with the second water distributing plate 131, the primary reinforcement between the primary reaction zone 12 and primary reinforcement reaction zone 13
The 3rd water distributing plate 141 is equipped between reaction zone 13 and secondary reinforcement reaction zone 14.
Further, as shown in Figure 1,121 open pore size is 1~2mm on first water distributing plate.Second water distribution
131 open pore size is 2~3mm on plate.Open pore size on 3rd water distributing plate 141 is 3~4mm.First water distribution
Plate 121, the second water distributing plate 131, the percent opening on the 3rd water distributing plate 141 are 50~70%.
Further, as shown in Figure 1, forming the slope that angle is 20-40 ° between the side in the Gua Ni areas 11 and horizontal plane
Degree.The Gua Ni areas 11 are in the downward cone of cone.The madial wall in the Gua Ni areas 11 is equipped with mud scraper 111.
In a preferred embodiment, the primary reaction zone 12, primary reinforcement reaction zone 13, secondary reinforcement reaction zone 14
Between the ratio between height (H) be 5:4:3~7:5:3.Specifically such as, the height of the primary reaction zone 12 is 2.4~3m.Described one
The height that level strengthens reaction zone 13 is 1.8~2.4m.The height of the secondary reinforcement reaction zone 14 is 1.3~1.8m.
In a preferred embodiment, the ratio between height between the primary reaction zone 12 and Gua Ni areas 11 is 3:1~4:
1.Specifically such as, the height in Gua Ni areas 11 is 0.5~1m.
In a preferred embodiment, the ratio between height between the solid-liquid displacement zone 15 and secondary reinforcement reaction zone 14 is
2:1~3:1.Specifically such as, the height of the solid-liquid displacement zone 15 is 2~3m.
In a preferred embodiment, the secondary reinforcement reaction zone 14, primary reinforcement reaction zone 13, primary reaction zone
12nd, the diameter (D of 11 bottom surface of Gua Ni areas1) equal.Specifically such as, the secondary reinforcement reaction zone 14, primary reinforcement reaction zone 13, just
Order reaction area 12, the diameter (D of 11 bottom surface of Gua Ni areas1) it is 2~5m.
In a preferred embodiment, as shown in Figure 1, the solid-liquid displacement zone 15 from top to bottom includes the firstth area successively
The 151, second section 152 of section, forms the gradient that angle is 30-40 ° between the side of second section 152 and horizontal plane.Institute
It is 3 to state the diameter ratio between the first section 151 and secondary reinforcement reaction zone 14:2~2:1.Specifically such as, first section
151 diameter (D2) it is 4~6m.The top surface of second section 152 is equal with the diameter of first section 151, and described
The bottom surface of two sections 152 is equal with the diameter of the secondary reinforcement reaction zone 14.
In a preferred embodiment, as shown in Figure 1, the top of the solid-liquid displacement zone 15 is equipped with multiple spherical fill out that suspend
The bed of material 153, the thickness for suspending spherical packing layer 153 is 10~20cm.The spherical packing layer 153 that suspends is by multiple suspensions
Ball-type packing is in series through cord, and the cord both ends are separately fixed on the inside of the correspondence both sides of the solid-liquid displacement zone 15
Wall.The material of the cord is steel.The dosage of the suspension Ball-type packing accounts for the first section 151 in the solid-liquid displacement zone 15
Percent by volume be 10-30%.
In a preferred embodiment, as shown in Figure 1, the lateral wall at the top of the solid-liquid displacement zone 15 is equipped with manually clearly
Wash platform 155.The iron powder for easy to people retain on the spherical packing layer 153 of cleaning suspension and downflow weir 154.
In a preferred embodiment, as shown in Figure 1, the madial wall at the top of the solid-liquid displacement zone 15 is equipped with downflow weir
154, the effluent trough 1541 of the downflow weir 154 is connected with the separator 2 by the road.Easy to wastewater effluent.
In a preferred embodiment, as shown in Figure 1, having further included agitating paddle 16 in the reactor 1, the agitating paddle
16 be axis stream push type agitating paddle, and the agitating paddle 16 includes agitating shaft 161, and the agitating shaft 161 from top to bottom passes through successively
Wear the solid-liquid displacement zone 15, secondary reinforcement reaction zone 14, primary reinforcement reaction zone 13 and go deep into the primary reaction zone 12,
161 side wall of agitating shaft is equipped with least one first blade 162, at least one second blade 163 and at least one 3rd
Blade 164, first blade 162 are arranged in the primary reaction zone 12, and second blade 163 is arranged on the level-one
Strengthen in reaction zone 13, the 3rd blade 164 is arranged in the secondary reinforcement reaction zone 14.
Further, as shown in Figure 1, the agitating paddle 16 is circumscribed with stirring motor 17, the stirring motor 17 is used to drive
Blade (162,163,164) rotation on dynamic agitating paddle 16.
Further, as shown in Figs. 1-2, first blade 162, the second blade 163, the 3rd blade 164 are axis stream
Pusher blade, the discharge opeing direction for making blade are parallel with agitating shaft 161.First blade 162, the second blade 163,
The speed of agitator of three blades 164 is 40~200rpm.The stirring of first blade 162, the second blade 163, the 3rd blade 164
Velocity gradient (G values) is 400~200s-1.Wherein, the diameter (d of first blade 1621) it is 0.4~0.5D, described first
The vertical range of the water distributing plate of blade 162 to the first 121 is 1.45-1.55 times of (1.45- of the diameter of first blade 162
1.55d1), it is preferably 1.5 times of (1.5d1).Diameter (the d of second blade 1631) it is 0.32~0.38D, second blade
The vertical range of 163 to the second water distributing plates 131 is 1.25-1.35 times of (1.25- of the diameter of second blade 163
1.35d1), it is preferably 1.3 times of (1.3d1).Diameter (the d of 3rd blade 1641) it is 0.25~0.30D, the 3rd blade
The vertical range of 164 to the 3rd water distributing plates 141 is 1.05-1.15 times of (1.05- of the diameter of the 3rd blade 141
1.15d1), it is preferably 1.1 times of (1.1d1)。
In a preferred embodiment, as shown in Figure 1, on pipeline between the influent waste water pipeline 4, along water inlet direction
Feed water flow gauge 61, inlet water lifting pumps 62, water inlet control valve 63 are equipped with successively.For controlling waste water to be flowed from influent waste water pipeline 4
11 water inlet of Ru Guani areas.
In a preferred embodiment, as shown in Figure 1, on pipeline between the solid-liquid displacement zone 15 and separator 2
Equipped with the first outlet water control valve 64.For the processing water after control process from 15 inflow separation device 2 of solid-liquid displacement zone.
In a preferred embodiment, as shown in Figure 1, being set on pipeline between the separator 2 and wastewater effluent mouth 5
There is the second outlet water control valve 65.For the water after control process wastewater effluent mouth 5 is flowed out from separator 2.
In a preferred embodiment, as shown in Figure 1, on pipeline between the separator 2 and iron powder cleaning device 3
Equipped with the first recycling iron control valve 66.Iron is flowed into for controlling from the ferrous powder granules that solid-liquid displacement zone 15 is flowed out from separator 2
Powder cleaning device 3 is cleaned.
In a preferred embodiment, as shown in Figure 1, between the iron powder cleaning device 3 and secondary reinforcement reaction zone 14
Pipeline be equipped with and mend iron control valve 67.It is strong for controlling the ferrous powder granules after cleaning from iron powder cleaning device 3 to pass back into two level
Change reaction zone 14 and carry out supplement iron powder amount.
In a preferred embodiment, as shown in Figure 1, on pipeline between the iron powder cleaning device 3 and Gua Ni areas 11
Equipped with the second recycling iron control valve 68, also set on the pipeline between the second recycling iron control valve 68 and iron powder cleaning device 3
There is recycling iron elevator pump 69.Carried out for controlling the ferrous powder granules from the outflow of 11 water outlet of Gua Ni areas to flow into iron powder cleaning device 3
Cleaning.
In a preferred embodiment, as shown in Figure 1, pipe between the iron powder cleaning device 3 and influent waste water pipeline 4
Road is equipped with cleaning waste water control valve 610.Return of waste water for controlling cleaning ferrous powder granules enters influent waste water pipeline 4.
In a preferred embodiment, the iron powder cleaning device 3 along wastewater effluent direction successively be equipped with ultrasound part and
Part is cleaned, the ultrasound portion lease making pipeline is connected with cleaning part split-phase.The ultrasound portion is divided into supersonic wave cleaning machine.It is described clear
Part is washed to be built-in with the container of nozzle.The cleaning part is successively passed through acid solution, water to the iron powder after ultrasound by nozzle
Grain is cleaned.The pickle that the pickling uses is hydrochloric acid and the mixed solution of sulfuric acid.Hydrochloric acid and sulfuric acid in the pickle
The ratio between molar concentration be 2:1~5:1.The pH of the pickle is 1~3.The time of the pickling is 30~60min.It is described
The water lotion used is washed as water.The time of the washing is 30~60min.
In a preferred embodiment, the particle diameter of the iron powder used in the reactor 1 is 0.5~100 μm, specific surface area
For 0.01~3m2/g.Wherein, the particle diameter of the iron powder used in the primary reaction zone 12 of the reactor 1 is 50~100 μm, than
Surface area is 0.01~0.08m2/g.The particle diameter of the iron powder used in the primary reinforcement reaction zone 13 of the reactor 1 for 10~
50 μm, specific surface area is 0.08~0.2m2/g.The particle diameter of the iron powder used in the secondary reinforcement reaction zone 14 of the reactor 1
For 0.5~10 μm, specific surface area is 0.2~3m2/g。
In a preferred embodiment, the iron powder concentration used in the reactor 1 is 10~80g/L.The waste water exists
Residence time in reactor 1 is 2~8h.
In a preferred embodiment, as shown in Figs. 1-2, axis stream propulsion is carried out by agitating paddle 16 in the reactor 1
Formula stirs.So that iron powder fluidisation and and waste water, handled.Pass through the first blade 162 in the primary reaction zone 12
The pusher stirring of axis stream, the pusher stirring of the interior axis stream by the second blade 163 of the primary reinforcement reaction zone 13, the two level
Strengthen reaction zone 14 and pass through the pusher stirring of the axis stream of the 3rd blade 164 so that iron powder fluidisation and and waste water, located
Reason.The speed of agitator of the agitating paddle 16 is 40~200rpm.
In a preferred embodiment, the ferrous powder granules pass back into iron powder cleaning dress by the road by 11 water outlet of Gua Ni areas
The return time for putting 3 is 5~10min, and reflow time interval is 1~3h.
In a preferred embodiment, the iron powder amount of supplement is 0.6~2kg/ weeks in the secondary reinforcement reaction zone 14, excellent
Elect as 0.8~1kg/ weeks.
In the above method, the pH of the waste water is controlled between 3~7, and reaction temperature is room temperature.
With reference to Fig. 1, illustrate a kind of specific place for the system for fluidizing state subregion iron powder processing waste water in the utility model
Reason process.
During specific processing, water inlet control valve 63 and inlet water lifting pumps 62 are first turned on, makes used water difficult to degradate by influent waste water
Pipeline 4 flows into 11 water inlet of Gua Ni areas of reactor 1, adjusts flow of inlet water by inlet water lifting pumps 62 in the process, and lead to
Feed water flow gauge 61 is crossed to be measured.After waste water flows into Gua Ni areas 11, pass sequentially through the first water distributing plate 121 and flow into primary reaction zone
12, primary reinforcement reaction zone 13 is flowed into by the second water distributing plate 131, secondary reinforcement reaction zone is flowed into by the 3rd water distributing plate 141
14.In flow process, under the driving of stirring motor 17, promoted by axis stream of first blade 162 in primary reaction zone 12
Formula stirs, and by the pusher stirring of axis stream of second blade 163 in primary reinforcement reaction zone 13, is existed by the 3rd blade 164
The pusher stirring of axis stream in secondary reinforcement reaction zone 14 so that the iron powder in reactor 1 is in stable fluidized state, realizes
Degraded to pollutant.Waste water flows into solid-liquid displacement zone 15 again, by being hanged in gravity precipitation and the spherical packing layer 153 that suspends
The crown_interception initial gross separation ferrous powder granules of floating Ball-type packing and processing water, obtain ferrous powder granules suspension, pass through downflow weir 154
1541 outflow reactor 1 of effluent trough.Ferrous powder granules suspension by 64 inflow separation device 2 of the first outlet water control valve,
The ferrous powder granules in water outlet are further recycled under magnetic force and gravity, after processing water is up to standard, pass through the second outlet water control valve 65
Flow out wastewater effluent mouth 5.The ferrous powder granules of recycling flow into iron powder cleaning device 3 by the first recycling iron control valve 66 and carry out clearly
Wash.Meanwhile after reactor 1 runs a period of time, due to the flocculation and gravity of reaction product, part iron powder can be by
Gradually deposition to Gua Ni areas 11, therefore, is needed to open the recycling iron of mud scraper 111 and second control valve 68 at regular intervals, made downwards
The iron powder deposited in get Gua mud area 11 enters iron powder cleaning device 3 by the iron elevator pump 69 that flows back and is cleaned.Iron powder cleaning dress
3 are put after ultrasound, pickling, washing clean up the reactive deposition thing on recycling iron powder surface, iron rust etc., by mending iron control
Recycling iron powder, is back to secondary reinforcement reaction zone 14 by valve 67 again, realizes the recycling of iron powder, and the waste water after cleaning passes through
Cleaning waste water control valve 610 passes back into influent waste water pipeline 4, flows into system after being mixed with raw wastewater again and is handled.
So the utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by the claim of the utility model.
Claims (10)
1. a kind of system for fluidizing state subregion iron powder processing waste water, it is characterised in that include reactor (1), separator
(2), iron powder cleaning device (3), the reactor (1) is interior to be equipped with the Gua Ni areas (11) being sequentially communicated, primary reaction from the bottom to top
Area (12), primary reinforcement reaction zone (13), secondary reinforcement reaction zone (14), solid-liquid displacement zone (15), the Gua Ni areas (11) into
The mouth of a river is connected with influent waste water pipeline (4), and the solid-liquid displacement zone (15) is connected with the separator (2) by the road,
The separator (2) is also connected with wastewater effluent mouth (5), iron powder cleaning device (3) by the road respectively, the iron powder cleaning
Device (3) is also connected with secondary reinforcement reaction zone (14), Gua Ni areas (11) water outlet, influent waste water pipeline (4) by the road respectively
It is logical.
2. a kind of system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that described to scrape mud
The first water distributing plate (121) is equipped between area (11) and primary reaction zone (12), the primary reaction zone (12) and primary reinforcement are anti-
Answer and the second water distributing plate (131) be equipped between area (13), the primary reinforcement reaction zone (13) and secondary reinforcement reaction zone (14) it
Between be equipped with the 3rd water distributing plate (141).
3. a kind of system for fluidizing state subregion iron powder processing waste water according to claim 2, it is characterised in that described first
Open pore size on water distributing plate (121) is 1~2mm；Open pore size on second water distributing plate (131) is 2~3mm；It is described
Open pore size on 3rd water distributing plate (141) is 3~4mm；First water distributing plate (121), the second water distributing plate (131), the 3rd
Percent opening on water distributing plate (141) is 50~70%.
4. a kind of system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that described to scrape mud
The gradient that angle is 20-40 ° is formed between the side in area (11) and horizontal plane；The madial wall of the Gua Ni areas (11) is equipped with and scrapes
Mud machine (111).
A kind of 5. system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that the primary
The ratio between height between reaction zone (12), primary reinforcement reaction zone (13), secondary reinforcement reaction zone (14) is 5:4:3~7:5:3；
The ratio between height between the primary reaction zone (12) and Gua Ni areas (11) is 3:1~4:1；The solid-liquid displacement zone (15) and two
It is 2 that level, which strengthens the ratio between height between reaction zone (14),:1~3:1.
A kind of 6. system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that the solid-liquid
Disengagement zone (15) includes any one of the following conditions or multinomial：
A1) solid-liquid displacement zone (15) from top to bottom includes the first section (151), the second section (152) successively, and described
The gradient that angle is 30-40 ° is formed between the side of two sections (152) and horizontal plane；
A2) top of the solid-liquid displacement zone (15) is equipped with multiple spherical packing layers (153) that suspend；
A3) lateral wall at the top of the solid-liquid displacement zone (15) is equipped with artificial cleaning platform (155)；
A4) madial wall at the top of the solid-liquid displacement zone (15) is equipped with downflow weir (154), the water outlet of the downflow weir (154)
Groove (1541) is connected with the separator (2) by the road.
A kind of 7. system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that the reaction
Agitating paddle (16) is further included in device (1), the agitating paddle (16) is axis stream push type agitating paddle, and the agitating paddle (16) includes
There is agitating shaft (161), the agitating shaft (161) from top to bottom sequentially passes through the solid-liquid displacement zone (15), secondary reinforcement reaction
Area (14), primary reinforcement reaction zone (13) and go deep into the primary reaction zone (12), agitating shaft (161) side wall is equipped with
At least one first blade (162), at least one second blade (163) and at least one 3rd blade (164), first paddle
Leaf (162) is arranged in the primary reaction zone (12), and second blade (163) is arranged on the primary reinforcement reaction zone
(13) in, the 3rd blade (164) is arranged in the secondary reinforcement reaction zone (14).
A kind of 8. system for fluidizing state subregion iron powder processing waste water according to claim 7, it is characterised in that the stirring
Paddle (16) includes the following conditions：
B1) a diameter of 0.4~0.5D of first blade1, the vertical range of the first blade to first water distributing plate is described
1.45-1.55 times of the diameter of first blade；
B2) a diameter of 0.32~0.38D of second blade1, the vertical range of second blade to the second water distributing plate is institute
State the diameter of the second blade 1.25-1.35 times；
B3) a diameter of 0.25~0.30D of the 3rd blade1, the vertical range of the 3rd blade to the 3rd water distributing plate is institute
State the diameter of the 3rd blade 1.05-1.15 times；
B4) the D1For secondary reinforcement reaction zone, primary reinforcement reaction zone, primary reaction zone, Gua Ni areas bottom surface diameter.
A kind of 9. system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that the iron powder
Cleaning device (3) is equipped with ultrasound part and cleaning part, the ultrasound portion lease making pipeline and cleaning along wastewater effluent direction successively
Part is connected.
A kind of 10. system for fluidizing state subregion iron powder processing waste water according to claim 1, it is characterised in that the stream
Change the system of state subregion iron powder processing waste water, further include any one of the following conditions or multinomial：
C1) on the influent waste water pipeline (4), along water inlet direction successively be equipped with feed water flow gauge (61), inlet water lifting pumps (62),
Water inlet control valve (63)；
C2) pipeline between the solid-liquid displacement zone (15) and separator (2) is equipped with the first outlet water control valve (64)；
C3) pipeline between the separator (2) and wastewater effluent mouth (5) is equipped with the second outlet water control valve (65)；
C4) pipeline between the separator (2) and iron powder cleaning device (3) is equipped with the first recycling iron control valve (66)；
C5) pipeline between the iron powder cleaning device (3) and secondary reinforcement reaction zone (14), which is equipped with, mends iron control valve (67)；
C6) pipeline between the iron powder cleaning device (3) and Gua Ni areas (11) is equipped with the second recycling iron control valve (68), institute
State and recycling iron elevator pump (69) is additionally provided with the pipeline between the second recycling iron control valve (68) and iron powder cleaning device (3)；
C7) pipeline between the iron powder cleaning device (3) and influent waste water pipeline (4) is equipped with cleaning waste water control valve
(610)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720624874.3U CN207330478U (en) | 2017-06-01 | 2017-06-01 | A kind of system for fluidizing state subregion iron powder processing waste water |
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|---|---|---|---|
| CN201720624874.3U CN207330478U (en) | 2017-06-01 | 2017-06-01 | A kind of system for fluidizing state subregion iron powder processing waste water |
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| CN207330478U true CN207330478U (en) | 2018-05-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032473A (en) * | 2017-06-01 | 2017-08-11 | 同济大学 | It is a kind of to fluidize the system that state subregion iron powder handles waste water |
| CN111847720A (en) * | 2020-07-31 | 2020-10-30 | 江苏南大华兴环保科技股份公司 | Pretreatment method of furan wastewater |
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2017
- 2017-06-01 CN CN201720624874.3U patent/CN207330478U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032473A (en) * | 2017-06-01 | 2017-08-11 | 同济大学 | It is a kind of to fluidize the system that state subregion iron powder handles waste water |
| CN111847720A (en) * | 2020-07-31 | 2020-10-30 | 江苏南大华兴环保科技股份公司 | Pretreatment method of furan wastewater |
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