A kind of aeration photocatalysis apparatus
Technical field
The present invention relates to a kind of aeration photocatalysis apparatus, belong to technical field of sewage in environment protection.
Background technology
Aeration refers to artificially and passes into air by suitable equipment in purification tank for liquid waste, to reach the purpose of oxygenation.Aeration not only makes liquid-to-air contact oxygenation in pond, and, due to agitated liquid, has accelerated oxygen in air and shifted in liquid; Aeration can also promote organic oxygenolysis in sewage.
Traditional water treatment method efficiency is low, cost is high, have secondary pollution problems, the solution that waste water control can not get always.Light-catalysed appearance, opened up the new direction of traditional wastewater treatment.But up to the present photocatalysis technology is not used widely yet aspect wastewater treatment, be mainly that some is to separate from water nano level being difficult to because of the granules of catalyst separation difficulty.Research for this technology at present mainly concentrates on the exploitation of catalyzer and the exploitation of catalytic unit.If simple applicable treatment facility is arranged, will greatly promote the development of wastewater treatment.
The important factor that affects catalyzed reaction efficiency has three: one is catalyst type, the 2nd, and the surface-area of catalyzer, one is the utilization ratio of light, i.e. the thickness of liquid film.For adopting identical catalyzer, the catalytic unit role is exactly: being the specific surface area that enlarges catalyzer on the one hand, is to guarantee light efficiency on the other hand.
When load has the carrier of nano particle to be soaked in water, the solution that exciting light must see through thicker (often more than several centimetres) just can shine on catalyzer.And in fact, no matter be at ultraviolet region or visible region, organic solution (especially with the look organic wastewater) all can have photoabsorption in various degree, this will certainly cause exciting light light loss in various degree, make the light intensity that arrives catalyst surface descend, thereby make the productive rate in light induced electron and hole descend, finally make the degradation efficiency of pollutent reduce.
Numerous literature research show: in solution, the concentration of dissolved oxygen is higher just more is conducive to the carrying out of light-catalyzed reaction.Dissolved oxygen concentration improves the reason that promotes degradation rate to improve: from chemical terms, planar water can be regarded as the electron-hole deathnium, and adsorb oxygen is the trapping agent of electronics.Aeration has increased the dissolved oxygen in the system, and the dissolved oxygen as electron acceptor(EA) can suppress light induced electron (e effectively on the one hand
-) and hole (h
+) simple composite, on the other hand, the superoxide anion (O of the high activity that dissolved oxygen generates
2 -) can with reactive organic molecule, or generate H in protonation later
2O
2Until OH has improved the activity of light-catalyzed reaction.(Shenyang Institute of Technology's journal, 75 pages of the 1st phases in 2004; Environmental chemistry, 88 pages of the 1st phases in 2010)
Currently used aeration type photochemical catalysis is generally to increase common aerating apparatus in catalytic process, and efficiency is low, power consumption is high.
Summary of the invention
The objective of the invention is provides for overcoming the deficiencies in the prior art the aeration photocatalysis apparatus that a kind of efficiency is high, low in energy consumption, do not have secondary pollution.
The technical solution used in the present invention is: the present invention includes two upper and lower parallel and coaxial disks, axle is fixedly linked in the axle center place of two disks, and the epimere of axle is through the center of second disk on top and extend upward and be fixedly connected with electric motor; Uniform several bend pipes of circumferential direction along the card of two disks, the hypomere of several bend pipes parallel with axle and through first disk of bottom to downward-extension, the epimere of several bend pipes is through second disk on top and along the center of second disk towards the outwardly-bent certain angle of oblique upper radially; The upper end of each bend pipe all has one section trunnion, and the thinnest side partly of trunnion is provided with the kapillary communicated with extraneous air; Outside two disks, coaxial sleeve has the first cylinder, and the first conically shaped of a concentric is extended in the upper end of the first cylinder, on the outer side of the first cylinder and the first conically shaped, is equipped with a plurality of bulbs; The outer coaxial sleeve of the first cylinder has second cylinder affixed with the first cylinder, and the second cylinder inboard fixedly is lined with the silver paper tinsel that area load has Trisilver phosphate; There are a plurality of the second conically shapeds in second cylinder outside coaxial sleeve vertically, and the second conically shaped upper end is large end, and the radius of the large end of the second conically shaped is greater than the length of bend pipe upper end bending, fixedly is lined with stair-stepping silver paper tinsel on the second conically shaped medial surface; The one side load that stair-stepping silver paper tinsel contacts with air has Trisilver phosphate; All be provided with bulb on the outer side of all the other the second conically shapeds except bottom second conically shaped; Have aperture on the second cylinder wall one circle of the second conically shaped and the second cylinder connection place; The bend pipe of the following part of first disk is placed in pending water.
The present invention adopts after technique scheme has following beneficial effect:
1, the disk in the present invention can be done littlely as far as possible, as long as can meet the bend pipe erection space, reduce to stir the water yield, the low power consuming oxygenation, reduce power waste.2, by oxygenation and photochemical catalysis combination, greatly promote photocatalysis effect.3, trunnion can make current accelerate, and the negative pressure formed at the trunnion place increases, and the kapillary at trunnion place can suck more air, can be effectively and the current mixing, and the increase dissolved efficiency.4, stepped support of the catalyst had both increased the surface-area of catalyzer, can increase oxygen dissolution again.5, the overflow weir of ladder step edge can keep certain liquid level, can not allow water flow velocity too fast, but also can maintain one deck liquid film.If 6, the outdoor use of the present invention, can also accept the irradiation of sunlight, take full advantage of the sun power decomposing pollutant.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of aeration photocatalysis apparatus of the present invention;
Fig. 2 is Fig. 1 middle and upper part disk 1 and bend pipe 3 packaging assembly enlarged diagrams;
Fig. 3 is the local enlarged diagram of cylinder 10 and conically shaped 11 packaging assemblies in Fig. 1;
In figure: 1. disk; 2. axle; 3. bend pipe; 4. trunnion; 5. kapillary; 6. electric motor; 7. cylinder; 8. conically shaped; 9. bulb; 10. cylinder; 11. conically shaped; 12. overflow weir; 13. bulb; 14. flanging; 15. support; 16. aperture.
Embodiment
With reference to Fig. 1, the present invention includes two upper and lower parallel and coaxial disks 1, two disks 1 are fixedly connected by axle 2, axle 2 is positioned at the axle center place of two disks 1, and the lower end of axle 2 is fixed on the center of first disk 1 of bottom, and the epimere of axle 2 is through the center of second disk 1 on top and extend upward certain length, the upper end of axle 2 is fixedly connected with electric motor 6, electric motor 6 fixedly is located on support 15, by electric motor 6 band moving axis 2 rotations, drives 1 rotation of two disks simultaneously.
Again referring to Fig. 2, circumferential direction along the card of two disks 1 is evenly arranged a circle bend pipe 3, bend pipe 3 has several, several bend pipes 3 pass the card of two disks 1 simultaneously, the hypomere of several bend pipes 3 is all parallel with axle 2, and first disk 1 of bottom is stretched out to downward-extension in the lower end of several bend pipes 3, the epimere of several bend pipes 3 is through second disk 1 on top, the epimere of several bend pipes 3 has certain angle a along the center of disk 1 towards oblique upper radially is outwardly-bent, and the angle of bend a of bend pipe 3 is between 90 ° ~ 150 °.The angle of bend a of all bend pipes 3 can be identical, also can be different.The upper end of each bend pipe 3 all has one section thinner trunnion 4, and trunnion 4 the thinnest sides partly are provided with kapillary 5, and the tube wall of kapillary 5 stretches out perpendicular to trunnion 4, and kapillary 5 communicates with extraneous air.
At two outer coaxial sleeves of disk 1, a cylinder 7 is arranged, the conically shaped 8 of a concentric is extended in the upper end of cylinder 7, and conically shaped 8 upper ends are large ends, and lower end is small end, and the internal diameter of small end equates with the internal diameter of cylinder 7.All be fixed with a plurality of bulbs 9 on the outer side of cylinder 7 and conically shaped 8, bulb 9 can be with halogen lamp or LED lamp.At the outer coaxial sleeve of cylinder 7, cylinder 10 is arranged, the bulb 9 on cylinder 7 outer sides is located between cylinder 7 outer sides and cylinder 10 medial surfaces, and cylinder 10 is inboard fixedly is lined with silver paper tinsel, and silver paper tinsel area load has Trisilver phosphate to make catalyzer.Cylinder 7 is fixed on cylinder 10 by metal strip radially, and the position of the lower end position of cylinder 7 and cylinder 10 and first disk 1 of bottom is suitable.
In cylinder 10 outsides, coaxial sleeve has a plurality of conically shapeds 11 vertically, and conically shaped 11 upper ends are large ends, and lower end is small end, and all conically shaped 11 end diameters are all identical with cylinder 10, and the upper end diameter of conically shaped 11 is not identical.The upper surface, top of all conically shapeds 11 all is positioned at sustained height, and the radius of conically shaped 11 large ends is greater than the length of bend pipe 3 upper end bendings, and the water outlet of bend pipe 3 upper port can be dropped on conically shaped 11 internal surfaces.The large end of conically shaped 11 is fixed in by fixed beam on the support 15 of electric motor 6, fixedly is lined with stair-stepping silver paper tinsel on conically shaped 11 medial surfaces.
The one side load that the stair-stepping silver paper tinsel fixedly be lined with on conically shaped 11 medial surfaces contacts with air has Trisilver phosphate, the step of stair-stepping silver paper tinsel is provided with overflow weir 12 along the line, for maintaining certain thickness of liquid film, there is the effect that maintains liquid layer and uniform liquid is overflowed.On the outer side of all the other conically shapeds 11 except a bottom conically shaped 11, bulb 13 all is installed, bulb 13 adopts identical or different bulbs with bulb 9.The outward flange of conically shaped 11 large ports folding downwards has flanging 14, for the protection of bulb 13, makes water can not drench bulb 13.Have aperture 16 on wall one circle of the cylinder 10 of conically shaped 11 and cylinder 10 connection places, water, after the step from stair-stepping silver paper tinsel flows down, flows in cylinders 10 through small holes 16, downward along the inwall of cylinder 10.
When the present invention works, the bend pipe 3 of first disk of bottom part below 1 all is placed in the pond for the treatment of sewage, and electric motor 6 band moving axis 2 rotate, and axle 2 drives disk 1 and rotates, disk 1 drives bend pipe 3 and rotates, top can form negative pressure, and water can be thrown out of by gas pressure, along with water is thrown out of, the interior formation negative pressure of bend pipe 3, water is drunk up and is thrown out of continuously by the lower port of the bend pipe 3 in pond, is throwing away trunnion 4 places, has air to incorporate in water by kapillary 5.Angle of bend difference due to bend pipe 3, the distance difference that water is thrown out of, by conically shaped 11 internal surfaces, tackled, water can be along the inboard stair-stepping silver paper tinsel of conically shaped 11 to dirty, on stair-stepping silver paper tinsel, load has visible light catalyst, under the irradiation of the light of bulb 13, the catalyzed degraded of water pollutant.When water passes aperture 16 on cylinder 10 walls, in the time of along cylinder 10 inwall stream, the light-illuminating of the bulb 9 on cylinder 7 surfaces, in liquid, continues water pollutant is decomposed under the effect of catalyzer, last current back pool, drunk up by bend pipe 3 this process that repeats again.