CN108689481A - Ozone microbubble catalytic oxidizing equipment and its application - Google Patents
Ozone microbubble catalytic oxidizing equipment and its application Download PDFInfo
- Publication number
- CN108689481A CN108689481A CN201810921618.XA CN201810921618A CN108689481A CN 108689481 A CN108689481 A CN 108689481A CN 201810921618 A CN201810921618 A CN 201810921618A CN 108689481 A CN108689481 A CN 108689481A
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- China
- Prior art keywords
- ozone
- tower body
- microbubble
- gas
- catalytic oxidizing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/784—Diffusers or nozzles for ozonation
Abstract
The invention belongs to the sewage disposal in environment-friendly engineering, a kind of ozone microbubble catalytic oxidizing equipment and its application are particularly related to.Ozone microbubble catalytic oxidizing equipment includes tower body, ozone generator and catalyst unit, and tower body is equipped with entery and delivery port, and water inlet includes being set to the upper and lower water inlet of tower body side wall upper and lower, and water outlet includes the upper and lower water outlet of side wall upper and lower;Gas-liquid mixture is delivered to microbubble generator by ozone generator by gas-liquid mixing pump, microbubble generator circulation line entrance below microbubble generator output termination tower body, catalyst unit is using longitudinally spaced and horizontally disposed at least two layers of catalyst tank, catalyst tank is set up in by holder in tower body, and the microbubble generator circulation line outlet that tower body side wall opens up above catalyst unit connects gas-liquid mixing pump.The present invention efficiently solves the low equal technical barriers of prior art ozone utilization rate, has many advantages, such as that compact-sized, ozone utilization rate is high.
Description
Technical field
The invention belongs to the sewage disposal in environment-friendly engineering, particularly relate to a kind of ozone microbubble catalytic oxidizing equipment and its
Using.
Background technology
With Urbanization Progress and industrial growing, generated municipal sewage and industrial wastewater have become water
The major reason of environmental pollution.Water pollution is further severe to being threatened caused by the water safety and health of ecological environment and people.
As the theory of harmonious co-existence between man and nature is gradually rooted in the hearts of the people the appearance with new period water prevention and cure of pollution policy, at sewage
The requirement of reason technology and difficulty are also gradually increasing.
By the industrial wastewater of conventional biological treatment, still containing some organic matters difficult to degrade, such as phenols, benzene class, cyaniding
Object, pesticide etc. so that discharge standard is not achieved still in 80-90mg/L in the effluent COD concentration after biological treatment.Therefore, it needs
Biological treatment is discharged and carry out advanced treating.In addition, tightened up sewage drainage standard, such as Beijing have been worked out in some cities
City's sewage level-one A standards are 15mg/L, and the effluent COD concentration of general municipal sewage plant is in 30-50mg/L, from reaching north
Capital city standard also has certain distance.
Ozone be it is a kind of efficiently and the strong oxidizer of non-secondary pollution, organic pollution that can directly in degrading waste water, so
And it is selective to the degradation of organic pollution, limits its application in handling waste water.Catalytic ozonation profit
Ozone decomposed is promoted to generate a large amount of hydroxyl radical free radical (OH) with catalyst, it can be without most organic in selectively degradation water
Pollutant.Gracia et al. is pointed out, under conditions of having metallic catalyst, ozone oxidation humus can reach higher TOC and go
Except rate.And catalytic ozonation also has the advantages that reaction speed is fast, easy to operate, operating cost is relatively low.Therefore, it urges
Change ozonation technology to be with a wide range of applications in the biodegradability of refractory wastewater and raising waste water.
In the prior art used in the organic wastewater of water treatment field during catalytic ozonation, only by ozone
It is passed into water, after adding heavy metal inducing agent, homogeneous catalytic oxidation is caused to react, usually only build a simple envelope
Pond is closed as reactor, there is that ozone utilization rate is low, reaction is incomplete, takes up a large area equal worn-out hold.
Ozone microbubble catalysis oxidation wastewater processing technology is based on the basis of common aeration plate or titanium alloy aeration plate
It generates, the purpose is to remove pollutant for microorganism to provide dissolved oxygen, improves the oxygen transfer efficiency in aeration gas.And fine gas
Bubble has large specific surface area, residence time are long, interface zeta potential is high, itself supercharging is dissolved, generated free radicals, strengthening mass-transfer efficiency etc.
Advantage.Using ozone microbubble technology, the gas-liquid mass transfer rate and ozone utilization ratio of ozone are helped to improve;Microbubble simultaneously
There are contraction and cracking properties in the liquid phase, ozone decomposed can be promoted to generate hydroxyl radical free radical, significantly improve the energy of oxidation of ozone
Power.
In recent years, the research that advanced treatment of industrial waste water is carried out using ozone microbubble catalytic oxidation technologies technique is more more
See, no matter from patent document material or in terms of academic research data, is mostly a kind of system of scientific research angle proposition, method, technique, lacks
Have and is discussed in detail for concrete application equipment.In addition proposed device, method generally use aeration plate mode more, exist
The defects such as ozone utilization rate is low.
The background technology that applicant is retrieved includes:
Application No. is a kind of catalytic ozonation water treatment facilities is disclosed in 201410327169.8 patent document, carry
A kind of multistage catalytic ozonation advanced oxidation water treatment facilities is gone out, device setting two kinds of catalyst of mushy stage add.Due to
Low using common aeration plate aeration ozone utilization rate merely, liquid catalyst needs sustainable supply, not reproducible utilization, solid-state to urge
Change unit also not propose to add and replacing options.
Application No. is disclosing a kind of method and apparatus of catalytic ozonation in 201511013150.7 patent document,
A kind of wastewater treatment mode of multistage shunting catalysis oxidation is disclosed, disadvantage, which is not take, improves the basic of ozone utilization rate
Measure, catalyst change is inconvenient, and the connection of ozone pipeline multistage can be by air pressure, gas access distance difference, installation factor shadow
Sound causes each section of hidden danger unevenly distributed.
Application No. is a kind of ozone catalytic device is disclosed in 201510822328.6 patent document, used in structure
Dissolving generates bubble, and bubble diameter is generally large, since the molten water rate of ozone is extremely low, especially influenced by metal ion
When, the ozone of be dissolved in water can be rapidly decomposed into oxygen, cannot effectively improve ozone utilization rate.Device ozone tail gas is not also taken
Treatment measures not only pollute air but also cause waste.
It is a kind of based on microbubble ozone heterogeneous catalysis application No. is being disclosed in 201510984211.8 patent document
The Tailwater Depth processing system of oxidation, system include the compositions such as ozone generator, reaction column and ozone breaker.Use aeration
Mode still uses aeration plate mode, ozone bubbles to be difficult to reach microbubble degree, and ozone utilization rate is also difficult to ensure;Catalyst
Unit is not strong for complicated water quality or fluctuation water quality adaptability using single activated carbon.
Although in conclusion more about the discussion of microbubble catalytic ozonation and research at this stage, what is proposed is micro-
Hole aeration mode is mostly more with aeration plate, aeration head, and ozone utilization rate is low, and oxidability is weak.
Invention content
The purpose of the present invention is to provide a kind of ozone microbubble catalytic oxidizing equipment and its applications, are deposited for the prior art
Technological deficiency, device using the present invention can effectively improve ozone utilization rate, and realization can be facilitated to be catalyzed as needed
The replacement of unit and arrangement.
The overall technology of the present invention is conceived:
Ozone microbubble catalytic oxidizing equipment, including tower body provide the ozone generator of ozone to tower body, are provided to tower body
The catalyst unit of catalyst, tower body are equipped with water inlet, water outlet, the water inlet include be opened in above tower body side wall and
Upper water inlet, the lower water inlet of lower section, water outlet include upper water-out mouth, the lower outlet of side wall over and under;Ozone occurs
Mixed gas-liquid mixture is delivered to microbubble generator, the output termination of microbubble generator by device by gas-liquid mixing pump
Microbubble generator circulation line entrance below tower body, catalyst unit is using longitudinally spaced and horizontally disposed at least two layers is urged
Agent case, catalyst tank are set up in by holder in tower body, and the microbubble that tower body side wall opens up above catalyst unit occurs
The outlet of device circulation line connects gas-liquid mixing pump.
Application of the ozone microbubble catalytic oxidizing equipment in sewage disposal.
The particular technique design of the present invention also has:
For the dissolved oxygen for improving in device, the sewage in device is handled convenient for aerobic microbiological, preferred technology is real
Existing mode is that the tower body lower inside is equipped with aeration plate.
It is emptied for ease of water remaining in device, preferred technical implementation way is the tower body bottom sidewall
Equipped with evacuation port.
For the air pocket that removal gas-liquid mixing pump generates, retain the thinner bubble in mixed liquor;Make to send out by microbubble
Further refinement and homogenization, preferred technical implementation way are the bubble that raw device processing generates, the gas-liquid mixing pump
Output connects the input terminal of microbubble generator, the air that gas-liquid separator escapes the gas-liquid mixture of separation through gas-liquid separator
Bubble is exported to gas-liquid mixing pump.
For ease of tower body in reaction observed, while convenient for extra gas in discharge tower body, preferred technology
Scheme is that at the top of the tower body and side wall is equipped with transparency window, observation window and air bleeding valve.
For ease of sample detection, preferred technical implementation way is to be provided with sampler on tower body side wall.
It is overhauled and is replaced for ease of equipment such as aeration plates to tower body bottom, preferred technical implementation way is tower
Mounting flange mouth is offered on body sidewall.For ease of the opening and closing of tower body top blind flange, tower body top plate passes through fast with tower body
Dress bolts assemblies are fixed.The quick fixation structure is equally applicable to the Standard of mounting flange mouth and tower body.
More preferably technical solution is that, to further increase the utilization rate of ozone, the gas of air bleeding valve discharge can pass through
Gas-liquid mixing pump further recycles.
To avoid tower body inner exhaust gas from being discharged with water outlet, preferred technical solution is that the upper water-out mouth is in inverted U
Shape.
The design principle of catalyst tank is easy for the release of catalyst, while meeting its coming into full contact with reactant, and
Conducive to realization catalyst change.Preferred technical implementation way is that the catalyst tank includes offering micropore by surface
The hollow cavity of sieve plate composition, is opened in the capping of floor lever of sieve tray.
For ease of picking and placeing for catalyst tank, preferred technical implementation way is the sieve for being located at both sides or upper surface
Handle is fixed on plate.
For ease of improving the structural strength of catalyst tank, preferred technical implementation way is the side of the hollow cavity
Reinforcing rib is equipped at angle.
The main function of microbubble generator is to improve the utilization rate of ozone, and microbubble generator includes that both ends open up
There are the supervisor of entrance and outlet, the entrance of supervisor to connect gas-liquid mixed pump output terminal, the entrance of supervisor connects gas by the first Venturi tube
The outlet of liquid mixing pump output terminal, supervisor is exported by the second Venturi tube, and the first Venturi tube and the second Venturi tube wrap from the outside to the core
Sequentially connected entrance, contraction section, venturi and diffuser are included, the helical-blade in the same direction with material direction of travel is fixed in supervisor
Piece, helical blade are equipped with trepanning, and open pore size radially from being sequentially reduced from inside to outside, aperture 0.5mm-2.5mm, same diameter
Adjacent trepanning spacing is 0.8mm-5mm upwards, and the upper adjacent trepanning spacing of circumferential direction is 0.8mm-5mm, on same circumference
The equiangularly spaced distribution of trepanning.Because above-mentioned microbubble generator is designed using venturi principle, therefore it is micro- to can be described as venturi
Bubble generator.
The dominant mechanism of trepanning distribution is on helical blade:Under hydraulic cyclone effect, bubble diameter in gas and liquid mixture
Under the action of the centrifugal force radially close to the ascending distribution in inner wall direction, while helical blade trepanning size distribution is divided with bubble
Cloth on the contrary in being distributed from large to small, and the microbubble of minor diameter is maintained in its diameter by macropore, micro- gas of air bulb diameter
Bubble passes through the variation that tapered flaring is undergone when trepanning, is able to further be crushed refinement.
Realize that quick fixing assembling, preferred technical solution are, are responsible for inner wall and spiral with supervisor for ease of helical blade
Spacing between blade outboard is not more than 0.3mm.When the main purpose of clearance fit is assembly after helical blade is installed in place,
It is conveniently by the mode of spot welding or welding that the helical blade in outside and supervisor inside is fixed, and then realize helical blade in master
Positioning in pipe.
The main function of helical blade is under water flow pressure and its guide functions, and gas and liquid mixture generates centrifugal force, micro-
Bubble under the action of the centrifugal force its diameter radially from being in from small to large to be distributed from inside to outside.Minor diameter microbubble is through on helical blade
Trepanning flow directly out, trepanning of the major diameter microbubble through helical blade is further crushed, and the microbubble of major diameter is enable to break
Chopping fine.Preferred technical solution is that the autonomous tube inlet of spacing to the outlet of the adjoining spiral blade is sequentially reduced, adjacent
The spacing of helical blade is 200mm-50mm.With the flowing of gas-liquid mixture, helical blade spacing is gradually reduced, and centrifugal force increases
Greatly, the refinement crushing effect of microbubble is further enhanced.In this way under total flow permanence condition, due to eddy flow area of section
Reduce, gas-liquid mixed flow velocity and pressure gradually increase, and the microbubble being relatively large in diameter in gas and liquid mixture is under the action of the centrifugal force
Also radially close to supervisor's inner wall directional spreding.According to hydraulic cyclone feature Fluid pressure radially close to wall direction pressure by
Cumulative big, bubble increases and the refinement that is broken under pressure increase effect in flow velocity.In addition, gas and liquid mixture is opened by helical blade
By the variation of tapered flaring when hole, the microbubble being relatively large in diameter is fined.
To make gas and liquid mixture be guided to helical blade, improve gas and liquid mixture circumferencial direction uniformly distributed effect, preferably
Technical solution be that axis is provided with a point water axis in the supervisor, divide between water axis and supervisor's inner wall and be fixed with helical-blade
Piece, helical blade inside and the spacing divided between water axis are not more than 0.3mm, and the main purpose of clearance fit is easy for spiral shell when assembly
On the inside of vane piece and the welding of water axis is divided to position.
More preferably technical solution is to be responsible for the adjacent cone for dividing the tapered angle of water shaft end for β of entrance, 10 °
≤β≤20°。
For ease of the connection of microbubble generator and gas-liquid mixing pump and other equipment, preferred technical solution is, described
The first Venturi tube and the second Venturi tube entrance on the outside of be equipped with jointing clip.It can easily be shown that jointing clip can
With the connecting interface and fixing component taken other form, without departing from the technical spirit of the present invention.
It tells on for ease of obtaining preferable microbubble, preferred technical implementation way is that gas-liquid mixing pump 17 exports
Gas and liquid mixture flow velocity be 1m/s-10m/s, pressure 0.1MPa-0.5MPa.
When the main function of first Venturi tube and the second Venturi tube is the diffuser for making gas and liquid mixture through the first Venturi tube
Diameter of section becomes larger, and flow velocity becomes smaller, and pressure reduces, and microbubble becomes larger;Diameter of section becomes smaller when diffuser through the second Venturi tube,
Flow velocity increases, and pressure increases, and microbubble becomes smaller;For the microbubble diameter for obtaining ideal, preferred technical solution is first
The taper angle of the diffuser of Venturi tube and the second Venturi tube be α, 10 °≤α≤20 °.
The structure design of trepanning makes it further refine primarily to further increase the crushing effect of microbubble, excellent
The technical solution of choosing is, the outside and inside of trepanning are taper hole, corresponding taper angle be respectively 2,100 ° γ 1, γ≤γ 1≤
160 °, 2≤160 ° of 100 °≤γ;The middle part of trepanning 13G is circular through hole, aperture φ, 0.5mm≤φ≤2.5mm;Helical-blade
The thickness of piece is δ, 1mm≤δ≤5mm.Trepanning design, which mainly uses the design principle of venturi, the size of trepanning, to be influenced in hole
With the direct factor of hole external differential, aperture more small pressure difference is bigger, and the bigger pressure difference in aperture is smaller.Small-bore trepanning is for gas-liquid mixed
Gas degree of refinement is big in body, and large aperture is low for gas degree of refinement in gas and liquid mixture.
It is arranged for ease of catalyst tank, while being easy to implement holder, there is preferable compatibility, preferred volume technology to realize
Mode is that holder includes the first support and longitudinally superimposed second be set up in above first support set on tower body bottom
Frame;First support and second support are made of vertical supporting bar and transverse support bar fixing assembling, first support top horizontal
Equipped with upper frustum, first support bottom is equipped with footing;At the top of second support and bottom level be equipped with shape adaptation upper frustum and
Lower frustum.
For ease of realizing that picking and placeing for holder, preferred technical implementation way are that the holder is equipped with lifting lug.
The present invention operation principle be:
Single-layer or multi-layer, single or multiple catalysts can be selected according to water quality and process condition when use, be exposed using common
Gas disk or microbubble mixed liquor circulation loop aeration, select enterprising underwater water outlet or lower water inlet upper water-out mode, according to water outlet water
Matter situation of change adjusts ozone generator gas output.
Applicant it should be noted that:
In the description of the present invention, term " lower section ", " top ", " bottom ", " top ", " side wall ", " longitudinal direction ", " water
It is flat ", " upper surface ", " both sides ", " radial direction ", " circumferential direction ", " inner wall ", the instructions such as " inside " orientation or positional relationship for based on attached
Orientation or positional relationship shown in figure is merely for convenience of simplifying the description present invention, does not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance.
The notable technological progress for the substantive distinguishing features and acquirement that the present invention has is:
1, compact overall structure of the present invention, repair dismantling is convenient, is readily transported and disposes.It can be used as catalytic oxidation treatment work
Skill individually handles industrial wastewater, also can carry out Combined Treatment with other technique series combinations.Can not only be used for medium-sized test equipment into
Row sewage disposal technology is studied, and the emergent water treatment facilities of point type source of sewage are also can be used as.
2, knockdown catalyst tank and holder, frame upper is used to connect nesting equipped with frustum type with bottom in tower body
Platform is placed in convenient for holder accurate stable in tower body.One be easy for catalyst bracket from top lift while, can single layer using
Can multiple layer combination, can single layer take out also multiple-layer stacked take out;Second is that can be arranged according to different process in catalyst tank different
Catalyst is catalyzed for different quality, different pollutants, is better than single-component catalyst respectively;Third, catalyst layer multilayer is arranged
It can promote hydraulic disturbance, be convenient for gas-liquid mixed and transmission.
3, ozone utilization rate can further improve using microbubble generator, circulation loop, while is carried out using aeration plate
Directly it is aerated.It can flexibly be selected according to water quality situation, select microbubble aeration mode that ozone utilization rate can be improved, coped with
The higher water quality of SS selects traditional aeration plate aeration that can fit more complex water quality.
4, the structure design of gas-liquid separator can effectively remove the air pocket of gas-liquid mixing pump generation, retain in mixed liquor
Thinner bubble;Make to handle the bubble generated further refinement and homogenization by microbubble generator.
5, tower body intake-outlet using upper entering and lower leaving be under to stream and bottom in and top out, that is, upward flow two ways, wherein on go out
The mouth of a river uses inverted U-shaped outlet pipe, can avoid gas in tower and is flowed out with flow.In terms of technological angle, using lower to fluently in gas-liquid
It comes into full contact with, contact of the water with catalyst is conducive to using upward flow.Rational flow direction can be selected (for example, right according to water quality situation
In being easy to catalysis, the good water quality of catalytic performance selects upward flow;It is poor for water quality, it is difficult under the water quality selection of oxidative degradation
To stream).
6, tower body top and side wall are equipped with transparency window and observation window, to state in daylighting and observing tower, are particularly advantageous for full
Sufficient microbubble adjusts demand.
7, the pipeline of microbubble generator and trepanning are designed using venturi design principle, effectively realize micro- gas
The crusher of bubble refines.Experiment confirms by contrast, and device catalysis oxidation wastewater processing technology using the present invention is with obvious effects excellent
In existing aerator.
8, helical blade uses the diminishing structure design of spacing, and the refinement crushing effect of microbubble is made further to increase
By force.
9, according to using hydraulic cyclone the characteristics of, carries out layout of the trepanning on helical blade and uses venturi principle
The open-celled structure of design further improves microbubble and is crushed degree of refinement, and improves the uniformity of microbubble.
10, the structure design for dividing water axis makes the positioning of helical blade assemble more convenient, water shaft end is divided to use taper knot
Structure designs, and gas and liquid mixture is made to be guided to helical blade, uniformly distributed effect of the raising gas and liquid mixture in circumferencial direction.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is I partial enlarged view in Fig. 1.
Fig. 3 is the A-A direction views of Fig. 1.
Fig. 4 is the stereogram of the present invention.
Fig. 5 is the structural schematic diagram of catalyst tank in the present invention.
Fig. 6 is Fig. 5 upward views.
Fig. 7 is the stereogram of catalyst tank.
Fig. 8 is the structural schematic diagram of the bottom bracket in the present invention.
Fig. 9 is the vertical view of Fig. 8.
Figure 10 is the stereogram of bottom bracket.
Figure 11 is the structural schematic diagram of the middle bracket of the present invention.
Figure 12 is the vertical view of Figure 11.
Figure 13 is the stereogram of middle bracket.
Figure 14 is the cooperation schematic diagram of the holder and catalyst tank in the present invention.
Figure 15 is the structural schematic diagram of the microbubble generator in the present invention.
Figure 16 is the B-B direction enlarged view of Figure 15.
Figure 17 is the open-celled structure schematic diagram of microbubble generator.
Reference numeral in attached drawing is as follows:
1, transparency window;2, fast-assembling bolt;3, tower body;4, upper water-out mouth;5, observation window;6, catalyst tank;6A, sieve plate;6B,
Capping;6C, micropore;6D, handle;6E, reinforcing rib;7, holder;7A, upper frustum;7B, lifting lug;7C, vertical supporting bar;7D, transverse direction
Supporting rod;7E, footing;7F, lower frustum;8, aeration plate;9, lower outlet;10, water inlet pipe;11, evacuation port;12, lower water inlet;
13, microbubble generator;13A, jointing clip;13B, the first Venturi tube;13C, helical blade;13D, divide water axis;13E, supervisor;
13F, the second Venturi tube;13G, trepanning;14, microbubble generator circulation line entrance;15, mounting flange mouth;16, microbubble is sent out
The outlet of raw device circulation line;17, gas-liquid mixing pump;18, gas-liquid separator;19, ozone generator;20, upper water inlet;21, tower
Body top plate;22, air bleeding valve;23, sampler.
Specific implementation mode
The present invention is described further with reference to embodiments, but should not be construed as limitation of the invention, the present invention
Protection domain be subject to the content of claim record, any equivalent technical elements made according to specification are replaced,
Protection scope of the present invention is not departed from.
The overall structure of the present embodiment is as shown, and wherein ozone microbubble catalytic oxidizing equipment includes tower body 3, gives tower body 3
The ozone generator 19 for providing ozone provides the catalyst unit of catalyst to tower body 3, and tower body 3 is equipped with water inlet, water outlet,
The water inlet includes being opened in upper water inlet 20, the lower water inlet 12 of 3 side wall of tower body over and under, and water outlet includes side
Upper water-out mouth 4, the lower outlet 9 of wall over and under;Ozone generator 19 is by gas-liquid mixing pump 17 by mixed gas-liquid
Mixture is delivered to microbubble generator 13, and the microbubble generator of 3 lower section of output termination tower body of microbubble generator 13 follows
Ring line entry 14, catalyst unit pass through holder 7 using longitudinally spaced and horizontally disposed three layers of catalyst tank 6, catalyst tank 6
It is set up in tower body 3, the microbubble generator circulation line outlet 16 that 3 side wall of tower body opens up above catalyst unit connects gas-liquid
Mixing pump 17.
Application of the ozone microbubble catalytic oxidizing equipment in sewage disposal.
3 lower inside of tower body is equipped with aeration plate 8.
3 bottom sidewall of tower body is equipped with evacuation port 11.
The output of the gas-liquid mixing pump 17 connects the input terminal of microbubble generator 13, gas-liquid point through gas-liquid separator 18
The air pocket that the gas-liquid mixture of separation escapes is exported to gas-liquid mixing pump 17 from device 18.
3 top of tower body and side wall are equipped with transparency window 1, observation window 5 and air bleeding valve 22.
It is provided with sampler 23 on 3 side wall of tower body.
Mounting flange mouth 15 is offered on 3 side wall of tower body.
Tower body top plate 21 is assembled by fast-assembling bolt 2 with tower body 3 and is fixed.The quick fixation structure is equally used for mounting flange mouth 15
With the Standard of tower body 3.
The gas that air bleeding valve 22 is discharged further is recycled by gas-liquid mixing pump 17.
The upper water-out mouth 4 is in inverted U-shaped.
The catalyst tank 6 includes the hollow cavity for offering the sieve plate 6A of micropore 6C by surface and forming, and is opened in sieve
The capping 6B on the surfaces plate 6A.
Described being located on the sieve plate 6A of both sides or upper surface is fixed with handle 6D.
The edge of the hollow cavity is equipped with reinforcing rib 6E.
Microbubble generator 13 offers entrance and the supervisor 13E of outlet including both ends, and being responsible for the entrance of 13E, to connect gas-liquid mixed
Pump output terminal is closed, the entrance for being responsible for 13E connects gas-liquid mixed pump output terminal by the first Venturi tube 13B, and the outlet for being responsible for 13E passes through
Second Venturi tube 13F outputs, the first Venturi tube 13B and the second Venturi tube 13F include sequentially connected entrance, receipts from the outside to the core
Contracting section, venturi and diffuser are responsible in 13E and are fixed with the helical blade 13C in the same direction with material direction of travel, helical blade 13C
Be equipped with trepanning 13G, the apertures trepanning 13G radially from being sequentially reduced from inside to outside, aperture 0.5mm-2.5mm, it is same radially
Adjacent trepanning 13G spacing is 0.8mm-5mm, and the upper adjacent trepanning 13G spacing of circumferential direction is 0.8mm-5mm, positioned at same circumference
On the equiangularly spaced distributions of trepanning 13G.Because above-mentioned microbubble generator is designed using venturi principle, therefore it can be described as literary mound
In microbubble generator.
Spacing between being responsible on the outside of 13E inner walls and helical blade 13C is not more than 0.3mm.
The spacing of the adjoining spiral blade 13C is sequentially reduced from supervisor 13E entrances to outlet, adjoining spiral blade
The spacing of 13C is 200mm-50mm.
Axis is provided with a point water axis 13D in the supervisor 13E, divides between water axis 13D and supervisor's 13E inner walls and is fixed with
On the inside of helical blade 13C, helical blade 13C and divide the spacing between water axis 13D no more than 0.3mm.
Supervisor 13E entrances it is adjacent divide the tapered angle in the ends water axis 13D be β cone, 10 °≤β≤20 °.
Jointing clip 13A is equipped on the outside of the entrance of the first Venturi tube 13B and the second Venturi tube 13F.
The flow velocity for the gas and liquid mixture that gas-liquid mixing pump 17 exports is 1m/s-10m/s, pressure 0.1MPa-0.5MPa.
The taper angle of the diffuser of first Venturi tube 13B and the second Venturi tube 13F be α, 10 °≤α≤20 °.
The outside and inside of trepanning 13G be taper hole, corresponding taper angle be respectively 2,100 ° γ 1, γ≤γ 1≤
160 °, 2≤160 ° of 100 °≤γ;The middle part of trepanning 13G is circular through hole, aperture φ, 0.5mm≤φ≤2.5mm;Helical-blade
The thickness of piece 13C is δ, 1mm≤δ≤5mm.
Holder 7 includes the first support and longitudinally superimposed second be set up in above first support set on 3 bottom of tower body
Holder;First support and second support are made of vertical supporting bar 7C and transverse support bar 7D fixing assemblings, first support top
Portion's level is equipped with upper frustum 7A, and first support bottom is equipped with footing 7E;At the top of second support and bottom level is equipped with shape adaptation
Upper frustum 7A and lower frustum 7F.
The holder 7 is equipped with lifting lug 7B.
To verify the technique effect of the present embodiment, applicant carried out following experiments:
Applicant is set by the way that the device in the present embodiment is applied to catalytic ozonation wastewater treatment with common aeration
Standby compared is told on verifying microbubble, and specific experiment process is as follows:
1, the time:December in October, 2016-;
2, content of the test:Ozone microbubble catalytic oxidizing equipment is tested in industrial wastewater application processing;
3, testing equipment:Microbubble catalytic ozonation integral type testing equipment;
4, water source is tested:Jinzhou chemical industrial park waste water;
5, test technology
(1) catalytic ozonation;
(2) catalyst:Original AC, dosage are the 1/3 of reactor effective volume;
(3) hydraulic detention time 0.5h;
(4) aeration mode:Aeration plate is aerated and microbubble aeration.
6, test result
(1) ozonation aerated experiment water outlet COD120mg/L of aeration plate or so, ozone utilization rate 50%-60% are used;Using
Equipment water outlet COD30mg/L in the present embodiment is hereinafter, 90.8% or more ozone average utilization, water outlet pH relatively stablize.
(2) the equipment processing waste water effect in the present embodiment is used to be better than"Urban wastewater treatment firm pollutant emission standard"
(GB18918-2002) level-one emission standard A.
Claims (21)
1. ozone microbubble catalytic oxidizing equipment, including tower body (3) provide the ozone generator (19) of ozone to tower body (3), give
Tower body (3) provides the catalyst unit of catalyst, and tower body (3) is equipped with water inlet, water outlet, it is characterised in that the water inlet
Including being opened in upper water inlet (20), the lower water inlet (12) of tower body (3) side wall over and under, water outlet includes above side wall
And upper water-out mouth (4), the lower outlet (9) of lower section;Ozone generator (19) is by gas-liquid mixing pump (17) by mixed gas
Liquid mixture is delivered to microbubble generator (13), the microbubble below the output termination tower body (3) of microbubble generator (13)
Generator circulation line entrance (14), catalyst unit are urged using longitudinally spaced and horizontally disposed at least two layers of catalyst tank (6)
Agent case (6) is set up in by holder (7) in tower body (3), and the microbubble hair that tower body (3) side wall opens up above catalyst unit is located at
Raw device circulation line outlet (16) connects gas-liquid mixing pump (17).
2. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that tower body (3) the interior subordinate
Side is equipped with aeration plate (8).
3. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that described tower body (3) bottom side
Wall is equipped with evacuation port (11).
4. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that the gas-liquid mixing pump
(17) output connects the input terminal of microbubble generator (13) through gas-liquid separator (18), and gas-liquid separator (18) is by the gas of separation
The air pocket of liquid mixture effusion is exported to gas-liquid mixing pump (17).
5. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that at the top of the tower body (3) and
Side wall is equipped with transparency window (1), observation window (5) and air bleeding valve (22).
6. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that the upper water-out mouth (4) is in
Inverted U-shaped.
7. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that catalyst tank (6) packet
It includes and offers the hollow cavity that the sieve plate (6A) of micropore (6C) forms by surface, be opened in the capping (6B) on the surface sieve plate (6A).
8. ozone microbubble catalytic oxidizing equipment according to claim 7, it is characterised in that it is described be located at both sides or on
It is fixed with handle (6D) on the sieve plate (6A) on surface.
9. ozone microbubble catalytic oxidizing equipment according to claim 7, it is characterised in that the side of the hollow cavity
Reinforcing rib (6E) is equipped at angle.
10. ozone microbubble catalytic oxidizing equipment according to claim 1, it is characterised in that the microbubble generator
(13) include supervisor (13E) that both ends offer entrance and outlet, the entrance of supervisor (13E) connects gas-liquid mixed pump output terminal, main
The entrance for managing (13E) connects gas-liquid mixed pump output terminal by the first Venturi tube (13B), and the outlet for being responsible for (13E) passes through the second text
Family name manages (13F) output, and the first Venturi tube (13B) and the second Venturi tube (13F) include sequentially connected entrance, receipts from the outside to the core
Contracting section, venturi and diffuser, supervisor (13E) is interior to be fixed with the helical blade in the same direction with material direction of travel (13C), helical blade
(13C) is equipped with trepanning (13G), and the trepanning aperture (13G) radially from being sequentially reduced from inside to outside, aperture 0.5mm-2.5mm, together
One radially adjacent trepanning (13G) spacing is 0.8mm-5mm, and adjacent trepanning (13G) spacing is 0.8mm-5mm on circumferential direction,
Trepanning (13G) equiangularly spaced distribution on same circumference.
11. ozone microbubble catalytic oxidizing equipment according to claim 10, it is characterised in that supervisor's (13E) inner wall and spiral shell
Spacing between on the outside of vane piece (13C) is not more than 0.3mm.
12. ozone microbubble catalytic oxidizing equipment according to claim 10, it is characterised in that the adjoining spiral leaf
The spacing of piece (13C) is sequentially reduced from supervisor (13E) entrance to outlet, and the spacing of adjoining spiral blade (13C) is 200mm-
50mm。
13. ozone microbubble catalytic oxidizing equipment according to claim 10, it is characterised in that in the supervisor (13E)
Axis is provided with a point water axis (13D), divides between water axis (13D) and supervisor's (13D) inner wall and is fixed with helical blade (13C), spiral shell
On the inside of vane piece (13C) and divide the spacing between water axis (13D) no more than 0.3mm.
14. ozone microbubble catalytic oxidizing equipment according to claim 13, it is characterised in that with supervisor (13E) entrance phase
Adjacent divides the tapered angle in end water axis (13D) for the cone of β, 10 °≤β≤20 °.
15. ozone microbubble catalytic oxidizing equipment according to claim 10, it is characterised in that first Venturi tube
Jointing clip (13A) is equipped on the outside of the entrance of (13B) and the second Venturi tube (13F).
16. the ozone microbubble catalytic oxidizing equipment according to claim 1,10-14, it is characterised in that gas-liquid mixing pump
(17) flow velocity of the gas and liquid mixture exported is 1m/s-10m/s, pressure 0.1MPa-0.5MPa.
17. the venturi microbubble generator according to any one of claim 10-15, it is characterised in that the first Venturi tube
The taper angle of the diffuser of (13B) and the second Venturi tube (13F) be α, 10 °≤α≤20 °.
18. ozone microbubble catalytic oxidizing equipment according to claim 17, it is characterised in that the outside of trepanning (13G) and
Inside is taper hole, and corresponding taper angle is respectively γ 1,1≤160 ° of 2,100 °≤γ of γ, 2≤160 ° of 100 °≤γ;Trepanning
The middle part of (13G) is circular through hole, aperture φ, 0.5mm≤φ≤2.5mm;The thickness of helical blade (13C) is δ, 1mm≤δ
≤5mm。
19. the ozone microbubble catalytic oxidizing equipment according to any one of claim 1-15, it is characterised in that holder (7)
Including the first support for being set to tower body (3) bottom and the longitudinally superimposed second support being set up in above first support;First
Frame and second support are made of vertical supporting bar (7C) and transverse support bar (7D) fixing assembling, and first support top horizontal is set
There are upper frustum (7A), first support bottom to be equipped with footing (7E);At the top of second support and bottom level is equipped with the upper of shape adaptation
Frustum (7A) and lower frustum (7F).
20. ozone microbubble catalytic oxidizing equipment according to claim 19, it is characterised in that set on the holder (7)
There is lifting lug (7B).
21. application of the ozone microbubble catalytic oxidizing equipment in sewage disposal according to claim 1-20.
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| CN112194238A (en) * | 2020-10-09 | 2021-01-08 | 江苏南大华兴环保科技股份公司 | Broken system of ozone bubble |
| WO2022143015A1 (en) * | 2020-12-29 | 2022-07-07 | 中海油天津化工研究设计院有限公司 | Micro-bubble pressurized circulating ozone catalytic oxidation reactor and method for treating waste water |
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