CN208732709U - Ozone microbubble catalytic oxidizing equipment - Google Patents

Abstract

The utility model belongs to the sewage treatment in environment-friendly engineering, particularly relates to a kind of ozone microbubble catalytic oxidizing equipment.Including tower body, ozone generator and catalyst unit, 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 gas-liquid mixing pump by ozone generator, microbubble generator circulation line entrance below microbubble generator output termination tower body, catalyst unit uses longitudinal gap and horizontally disposed at least two layers of catalyst tank, catalyst tank is set up in tower body by bracket, and the microbubble generator circulation line outlet that tower body side wall opens up above catalyst unit connects gas-liquid mixing pump.The utility model efficiently solves the technical problems such as prior art ozone utilization rate is low, has many advantages, such as that compact-sized, ozone utilization rate is high.

Description

Ozone microbubble catalytic oxidizing equipment

Technical field

The utility model belongs to the sewage treatment in environment-friendly engineering, particularly relates to a kind of ozone microbubble catalysis oxidation dress It sets.

Background technique

With Urbanization Progress and industrial growing, generated municipal sewage and industrial wastewater have become water The major reason of environmental pollution.It is threatened caused by water safety and health of the water pollution to ecological environment and people further severe. 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 contain 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 standard is 15mg/L, and the effluent COD concentration of general municipal sewage plant is in 30-50mg/L, from reaching north There are also certain distances for capital city standard.

Ozone is a kind of efficient and without secondary pollution strong oxidizer, can organic pollutant directly in degrading waste water, so And it is selective to the degradation of organic pollutant, limits its application in processing waste water.Catalytic ozonation benefit Promote ozone to decompose with catalyst and generates a large amount of hydroxyl radical free radical (OH), it can be without most organic in water of selectively degrading 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 lower.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 during the catalytic ozonation used in the organic wastewater of water treatment field, 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 not exclusively, 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 pressurization is dissolved, generated free radicals, strengthening mass-transfer efficiency etc. Advantage.Using ozone microbubble technology, the gas-liquid mass transfer rate and ozone utilization efficiency of ozone are helped to improve；Microbubble simultaneously There are contraction and cracking properties in the liquid phase, can promote ozone and decompose generation hydroxyl radical free radical, significantly improve the energy of oxidation of ozone Power.

In recent years, the research for carrying out advanced treatment of industrial waste water using ozone microbubble catalytic oxidation technologies technique is more more See, is mostly that scientific research angle proposes a kind of system, method, technique no matter from patent document material or in terms of academic research data, it is few Have and is discussed in detail for concrete application equipment.In addition it is more to generally use aeration plate mode for proposed device, method, exist The defects such as ozone utilization rate is low.

The background technique that applicant is retrieved includes:

Application No. is a kind of catalytic ozonation water treatment facilities is disclosed in 201410327169.8 patent document, mention 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, and solid-state is urged 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 will receive 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 the heterogeneous catalysis of microbubble ozone application No. is being disclosed in 201510984211.8 patent document The Tailwater Depth processing system of oxidation, system include the composition such as ozone generator, reaction column and ozone breaker.Use aeration Mode still uses aeration plate mode, and ozone bubbles are 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 active carbon.

Although what is proposed is micro- in conclusion more about the discussion of microbubble catalytic ozonation and research at this stage Hole aeration mode be mostly with aeration plate, aeration head it is more, ozone utilization rate is low, and oxidability is weak.

Utility model content

The purpose of this utility model is to provide a kind of ozone microbubble catalytic oxidizing equipments, for of the existing technology Technological deficiency can effectively improve ozone utilization rate using the device of the utility model, and realization can be facilitated to be catalyzed as needed The replacement and arrangement of unit.

The overall technology design of the utility model is:

Ozone microbubble catalytic oxidizing equipment, including tower body provide the ozone generator of ozone to tower body, provide 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 over and under side wall；Ozone occurs Mixed gas-liquid mixture is delivered to microbubble generator, the output termination of microbubble generator by gas-liquid mixing pump by device Microbubble generator circulation line entrance below tower body, catalyst unit is using longitudinal gap and urges for horizontally disposed at least two layers Agent case, catalyst tank are set up in tower body by bracket, 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.

The particular technique of the utility model is conceived also:

To improve the dissolved oxygen 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.

To be emptied convenient for 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 The bubble that raw device processing generates further is refined and is homogenized, and preferred technical implementation way is, the gas-liquid mixing pump Output connects the input terminal of microbubble generator, the atmosphere that gas-liquid separator escapes isolated gas-liquid mixture through gas-liquid separator Bubble is exported to gas-liquid mixing pump.

For convenient for the intracorporal reaction of tower 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 exhaust valve.

For convenient for sample detection, preferred technical implementation way is to be provided with sampler on tower body side wall.

To be overhauled and being replaced convenient for equipment such as aeration plates to tower body bottom, preferred technical implementation way is tower Mounting flange mouth is offered on body sidewall.For the opening and closing convenient for tower body top blind flange, tower body top plate and tower body pass through fastly Bolt assembly is filled to fix.The quick fixation structure is equally applicable to the Standard of mounting flange mouth and tower body.

More preferably technical solution is that the gas for the utilization rate for further increasing ozone, exhaust 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 the pick-and-place convenient for catalyst tank, preferred technical implementation way is the sieve for being located at two sides or upper surface Handle is fixed on plate.

For the structural strength convenient for improving 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 the utilization rate in order to improve ozone, and microbubble generator includes that both ends open up There is the supervisor of entrance and outlet, the entrance of supervisor connects gas-liquid mixed pump output terminal, and 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 aperture, and open pore size radially from being sequentially reduced from inside to outside, aperture 0.5mm-2.5mm, same diameter Adjacent aperture spacing is 0.8mm-5mm upwards, and the upper adjacent aperture spacing of circumferential direction is 0.8mm-5mm, on same circumference The equiangularly spaced distribution of aperture.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 that aperture is distributed on helical blade is: 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 aperture size distribution and bubble divide Cloth is in be distributed from large to small on the contrary, and the microbubble of minor diameter is maintained by its diameter of macropore, micro- gas of atmosphere bulb diameter Bubble passes through the variation that tapered flaring is undergone when aperture, is able to further be crushed refinement.

To realize that quick fixing assembling, preferred technical solution are, are responsible for inner wall and spiral convenient for helical blade and supervisor 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 from inside to outside in being from small to large distributed.Minor diameter microbubble is through on helical blade Aperture flow directly out, aperture 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 are gradually increased, 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, gas and liquid mixture is improved in the uniformly distributed effect of circumferencial direction, 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 the cone that the adjacent tapered angle in the shaft end Fen Shui portion of supervisor's entrance is β, 10 ° ≤β≤20°。

For the connection convenient for 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 essence of the utility model.

It tells on for readily available 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；To obtain ideal microbubble diameter, 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 of aperture designs primarily to further increase the crushing effect of microbubble, refines it further, excellent The technical solution of choosing is, the outside and inside of aperture 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 aperture 13G is circular through hole, aperture φ, 0.5mm≤φ≤2.5mm；Helical-blade Piece with a thickness of δ, 1mm≤δ≤5mm.Aperture design mainly uses the design principle of venturi, and the size of aperture is 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 aperture 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.

To arrange convenient for catalyst tank, while bracket is easy to implement with preferable compatibility, preferred volume technology is realized Mode is that bracket 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 the pick-and-place for being easy to implement bracket, preferred technical implementation way is that the bracket is equipped with lifting lug.

The working principle of the utility model is:

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 understood that

In the description of the present invention, term " lower section ", " top ", " bottom ", " top ", " side wall ", " longitudinal direction ", The orientation or positional relationship of the instructions such as "horizontal", " upper surface ", " two sides ", " radial direction ", " circumferential direction ", " inner wall ", " inside " is base In orientation or positional relationship shown in the drawings, it is merely for convenience of simplifying description the utility model, rather than indication or suggestion institute The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this reality With novel limitation.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite Importance.

Technological progress acquired by the utility model is:

1, the utility model compact overall structure, maintenance dismantling is convenient, is readily transported and disposes.It can be used as at catalysis oxidation Science and engineering skill individually handles industrial wastewater, can also carry out Combined Treatment with other technique series combinations.It can not only be used for medium-sized test to set It is standby to carry out sewage disposal technology research, it also can be used as the emergency water treatment facilities of point type source of sewage.

2, knockdown catalyst tank and bracket are used in tower body, frame upper is equipped with frustum type with bottom and connects nesting Platform is placed in tower body convenient for bracket accurate stable.One while be easy for catalyst bracket from top lift, 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 respectively for different quality, different pollutants, is better than single-component catalyst；Third is that 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.Flexible choice can be carried out according to water quality situation, select microbubble aeration mode that ozone utilization rate can be improved, cope 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；The bubble for handling generation by microbubble generator is set further to refine and homogenize.

5, to stream and bottom in and top out, that is, upward flow two ways under tower body intake-outlet is using upper entering and lower leaving, wherein above going out The mouth of a river uses inverted U-shaped outlet pipe, can avoid gas in tower and flows out with water 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.Reasonable flow direction can be selected (for example, right according to water quality situation In be easy to be catalyzed, 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 aperture are designed using venturi design principle, effectively realize micro- gas The crusher of bubble refines.Test confirms by contrast, bright using the device catalysis oxidation wastewater processing technology effect of the utility model It is aobvious to be better than existing aerator.

8, helical blade increases the refinement crushing effect of microbubble further using the diminishing structure design of spacing By force.

9, according to using hydraulic cyclone the characteristics of carries out layout of the aperture 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, divide the structure of water axis to design, assemble the positioning of helical blade more convenient, the shaft end Fen Shui portion uses taper knot Structure design, makes gas and liquid mixture be guided to helical blade, improves gas and liquid mixture in the uniformly distributed effect of circumferencial direction.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model.

Fig. 2 is I partial enlarged view in Fig. 1.

Fig. 3 is the A-A direction view of Fig. 1.

Fig. 4 is the perspective view of the utility model.

Fig. 5 is the structural schematic diagram of catalyst tank in the utility model.

Fig. 6 is Fig. 5 bottom view.

Fig. 7 is the perspective view of catalyst tank.

Fig. 8 is the structural schematic diagram of the bottom bracket in the utility model.

Fig. 9 is the top view of Fig. 8.

Figure 10 is the perspective view of bottom bracket.

Figure 11 is the structural schematic diagram of the middle bracket of the utility model.

Figure 12 is the top view of Figure 11.

Figure 13 is the perspective view of middle bracket.

Figure 14 is the cooperation schematic diagram of the bracket and catalyst tank in the utility model.

Figure 15 is the structural schematic diagram of the microbubble generator in the utility model.

Figure 16 is the B-B direction enlarged view of Figure 15.

Figure 17 is the open-celled structure schematic diagram of microbubble generator.

Appended drawing reference 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, bracket；7A, upper frustum；7B, lifting lug；7C, vertical supporting bar；7D, transverse direction Support 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, aperture；14, microbubble generator circulation line entrance；15, mounting flange mouth；16, microbubble is sent out Raw device circulation line outlet；17, gas-liquid mixing pump；18, gas-liquid separator；19, ozone generator；20, upper water inlet；21, tower Body top plate；22, exhaust valve；23, sampler.

Specific embodiment

The utility model is described further with reference to embodiments, but should not be construed as the limit to the utility model Fixed, the protection scope of the utility model is subject to the content of claim record, any equivalent skill made according to specification Art means replacement, all without departing from the protection scope of the utility model.

The overall structure of the present embodiment is as shown, including tower body 3, provides the ozone generator 19 of ozone to tower body 3, gives tower Body 3 provides the catalyst unit of catalyst, and tower body 3 is equipped with water inlet, water outlet, and the water inlet includes being opened in tower body 3 Upper water inlet 20, lower water inlet 12 over and under side wall, water outlet include upper water-out mouth 4 over and under side wall, under Water outlet 9；Mixed gas-liquid mixture is delivered to microbubble generator 13 by gas-liquid mixing pump 17 by ozone generator 19, The microbubble generator circulation line entrance 14 of 3 lower section of output termination tower body of microbubble generator 13, catalyst unit is using vertical To interval and horizontally disposed three layers of catalyst tank 6, catalyst tank 6 is set up in tower body 3 by bracket 7, is located at catalyst unit The microbubble generator circulation line outlet 16 that tower body 3 side wall in top opens up connects gas-liquid mixing pump 17.

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 isolated gas-liquid mixture 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 exhaust valve 22.

Sampler 23 is provided 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 and tower body 3 are fixed by the assembly of fast-assembling bolt 2.The quick fixation structure is equally used for mounting flange mouth 15 With the Standard of tower body 3.

The gas that exhaust 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 surface plate 6A.

Handle 6D is fixed on the sieve plate 6A for being located at two sides or upper surface.

The edge of the hollow cavity is equipped with reinforcing rib 6E.

Microbubble generator 13 includes the supervisor 13E that both ends offer entrance and outlet, and the entrance for being responsible for 13E connects gas-liquid and mixes 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 output, 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 aperture 13G, the aperture aperture 13G radially from being sequentially reduced from inside to outside, aperture 0.5mm-2.5mm, it is same radially Adjacent aperture 13G spacing is 0.8mm-5mm, and the upper adjacent aperture 13G spacing of circumferential direction is 0.8mm-5mm, positioned at same circumference On the equiangularly spaced distribution of aperture 13G.Because above-mentioned microbubble generator is designed using venturi principle, therefore it can be described as literary mound In microbubble generator.

The spacing being responsible between on the outside of 13E inner wall and helical blade 13C is not more than 0.3mm.

The spacing of the adjoining spiral blade 13C is sequentially reduced from supervisor 13E entrance 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 wall 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 entrance it is adjacent divide the tapered angle in the end 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 aperture 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 aperture 13G is circular through hole, aperture φ, 0.5mm≤φ≤2.5mm；Helical-blade Piece 13C with a thickness of δ, 1mm≤δ≤5mm.

Bracket 7 includes the first support and longitudinally superimposed second be set up in above first support set on 3 bottom of tower body Bracket；First support and second support are made of vertical supporting bar 7C and transverse support bar 7D fixing assembling, 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 bracket 7 is equipped with lifting lug 7B.

For the technical effect for verifying the present embodiment, applicant carried out following tests:

Applicant is set by the way that the device in the present embodiment is applied to catalytic ozonation wastewater treatment with common aeration Standby to compare to verify microbubble and tell on, specific test process is as follows:

1, the time: December in October, 2016-；

2, content of the test: ozone microbubble catalytic oxidizing equipment is in industrial wastewater application processing test；

3, testing equipment: microbubble catalytic ozonation integral type testing equipment；

4, water source: Jinzhou chemical industrial park waste water is tested；

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 aeration and microbubble aeration.

6, test result

(1) using ozonation aerated test water outlet COD120mg/L of aeration plate or so, ozone utilization rate 50%-60%；Using Equipment water outlet COD30mg/L in the present embodiment is hereinafter, 90.8% or more ozone average utilization, water outlet pH are more stable.

(2) " urban wastewater treatment firm pollutant emission standard " is better than using the equipment processing waste water effect in the present embodiment (GB18918-2002) level-one emission standard A.

Claims (20)

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 upper water inlet (20), the lower water inlet (12) being opened in over and under tower body (3) side wall, water outlet includes above side wall And upper water-out mouth (4), the lower outlet (9) of lower section；Ozone generator (19) passes through gas-liquid mixing pump (17) for mixed gas Liquid mixture is delivered to microbubble generator (13), the microbubble below output termination tower body (3) of microbubble generator (13) Generator circulation line entrance (14), catalyst unit use longitudinal gap and horizontally disposed at least two layers of catalyst tank (6), urge Agent case (6) is set up in tower body (3) by bracket (7), is located at the microbubble hair that tower body (3) side wall opens up above catalyst unit 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 isolated gas The air pocket of liquid mixture evolution 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 exhaust 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 The hollow cavity being made of the sieve plate (6A) that surface offers micropore (6C) is included, the capping (6B) on the surface sieve plate (6A) is opened in.

8. ozone microbubble catalytic oxidizing equipment according to claim 7, it is characterised in that it is described be located at two sides or on Handle (6D) is fixed 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 It (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 of pipe (13E) connects gas-liquid mixed pump output terminal by the first Venturi tube (13B), and the outlet of supervisor (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 aperture (13G), and the aperture aperture (13G) radially from being sequentially reduced from inside to outside, aperture 0.5mm-2.5mm, together One radially adjacent aperture (13G) spacing is 0.8mm-5mm, and adjacent aperture (13G) spacing is 0.8mm-5mm on circumferential direction, Aperture (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 (13E) 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, and 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. according to claim 1, ozone microbubble catalytic oxidizing equipment described in any one of 10-14, it is characterised in that gas-liquid The flow velocity of the gas and liquid mixture of mixing pump (17) output is 1m/s-10m/s, pressure 0.1MPa-0.5MPa.

17. ozone microbubble catalytic oxidizing equipment described in any one of 0-15 according to claim 1, it is characterised in that the first text The taper angle that family name manages the diffuser of (13B) and the second Venturi tube (13F) is α, 10 °≤α≤20 °.

18. ozone microbubble catalytic oxidizing equipment according to claim 17, it is characterised in that the outside of aperture (13G) and Inside is taper hole, and corresponding taper angle is respectively 1≤160 °, 2≤160 ° of 100 °≤γ of 2,100 ° γ 1, γ≤γ；Aperture The middle part of (13G) is circular through hole, aperture φ, 0.5mm≤φ≤2.5mm；Helical blade (13C) with a thickness of δ, 1mm≤δ ≤5mm。

19. ozone microbubble catalytic oxidizing equipment described in any one of -15 according to claim 1, it is characterised in that bracket (7) First support and the longitudinally superimposed second support being set up in above first support including being set to tower body (3) bottom；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 Have upper frustum (7A), first support bottom is 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 bracket (7) There is lifting lug (7B).