61results about How to "Improve collision efficiency" patented technology

The invention relates to a copolymerization flotation-sedimentation tank. The copolymerization flotation-sedimentation tank comprises a multi-channel folded plate copolymerization flocculation basin, a flotation-sedimentation tank and an air dissolving system, wherein the multi-channel folded plate copolymerization flocculation basin is used for realizing the coagulation and the copolymerization of flocculates and microbubbles; the flotation-sedimentation tank is connected to the rear end of the multi-channel folded plate copolymerization flocculation basin and is used for separating foamed flocculates from water flow and precipitating settleable flocculates which cannot float; and the air dissolving system is connected with a water outlet end of the flotation-sedimentation tank and is connected with the multi-channel folded plate copolymerization flocculation basin and the flotation-sedimentation tank to supply high-pressure backflow gas dissolved water to the multi-channel folded plate copolymerization flocculation basin and the flotation-sedimentation tank. According to the copolymerization flotation-sedimentation tank, the high-pressure backflow gas dissolved water is fed for three times, by virtue of organic combination with a flocculation process, a microbubble and flocculate copolymerized environment is created, and the produced foamed flocculates are stable and are not easily separated, so that the problems that the adhesion efficiency of particles is low, the trapping effect is not ideal, the adhesion of the foamed flocculates is instable, and the like of a traditional dissolved air flotation process are solved, and the coagulation, air floatation and sedimentation processes are organically combined and integrated; and the copolymerization flotation-sedimentation tank has prominent superiority in the treatment of water quality in high-algae, low-turbidity and burst high-turbidity reservoirs.

A micromixer used for microfluidic system is provided. The micromixer incorporates a pairs of reciprocating pumps and a pairs of fluidic element for mixing at least two fluids. With such a microfluid mixer, the at least two fluids are mixed when the reciprocating pumps are in their forward strokes by means of the impingement of two pulsation flows. The two fluids are also mixed when the reciprocating pumps are in their backward strokes by means of the generation of the vortexes, and the two fluids are also mixed by means of mass diffusion via a purposeful like-lamella-structure.

The invention discloses a bipolar prick electric coagulation device which is characterized in that the electric coagulation device mainly comprises a housing, a high-voltage electrode, two grounding electrodes and a high-voltage alternating current power supply, wherein the high-voltage electrode comprises a high-voltage polar plate and high-voltage pricks; the grounding electrodes comprise grounding polar plates and grounding pricks; the shapes and the structures of the two grounding electrodes are the same; pinpoints of the grounding pricks of the two grounding electrodes are opposite, and the two grounding electrodes are parallely arranged in two symmetrical edges of the housing; the high-voltage electrode is parallel to the two grounding electrodes, arranged with the two grounding electrodes in an equally spaced manner, and arranged between the two grounding electrodes; the pinpoints of the high-voltage pricks and the grounding pricks are in stagger arrangement relatively; the high-voltage polar plate is connected with the high-voltage alternating current power supply; the two grounding polar plates are both connected with the ground. The electric coagulation device can effectively coagulate fine dust particles in smoke, is convenient for a following electric precipitator to remove dust effectively, and has the characteristics of simple structure, small size, low cost, suitability for industrial popularization and application and the like.

The invention discloses a loading flocculation pretreatment method of antibiotic fermentation wastewater and is suitable for processing mixed wastewater discharged during each antibiotic fermentation technological section. By the adoption of the loading flocculation technology, flocculation pretreatment is carried out on mixed wastewater of a crystallization solution, waste mother liquor, dona tub washing wastewater and washing wastewater for a fermentation cylinder during the antibiotic production process. A flocculating agent contains polyaluminum chloride and polyacrylamide; and the addition sequence of the flocculating agent is to add polyaluminum chloride at first and then add polyacrylamide. A loading agent contains one or two mixtures selected from active carbon, fly ash, activatedsludge and settling sludge. By the adoption of the method provided by the invention, the flocculation treatment can be effectively carried out on high-density organic wastewater generated during the antibiotic fermentation production. The method provided by the invention is simple, requires low cost and has a stable effect. By the adoption of the method, the treated wastewater can reach the requirement of subsequent biochemical treatment.

A pulverization / classification apparatus includes a plurality of air nozzles, a milling chamber as a space for pulverizing particles by compressed air jetted by the air nozzles, and a rotor installed at an upper part of the milling chamber that classifies powder materials flowing into the rotor from the milling chamber with centrifuging into fine particles and coarse particles. The rotor includes plural blade members, and a width of the blade members within the rotor are set to be 1 / 50- 2 / 25 of the rotor's diameter.

The invention provides a process chamber and a semiconductor device. The process chamber involves a chamber body and a base and an air inlet pipeline arranged in the chamber body, wherein the air inlet pipeline comprises a main air inlet channel and a plurality of diversion channels, the plurality of diversion channels are arranged in the base and are correspondingly in communication with the mainair inlet channel, and an air outlet of each diversion channel is located on the outer peripheral surface of the base. By applying the process chamber, the influence of the offset extraction of a cold pump on the uniformity of a deposited film can be effectively weakened, the gas movement of the process area is more uniform, the uniformity of the deposited film is improved, and the process capability and the product quality of the device are improved.

The invention relates to a charcoal circulation type co-coagulation flotation tank water purification system and method. Mechanical flocculation, dissolved air flotation and an inclined plate settling basin are organically combined so as to form copolymerization dissolved air flotation, and mechanical flocculation and dissolved air flotation are organically combined through a copolymerization dissolved air flotation process, so that the stability of bubble floc is improved. Ozone oxidation and biological activated carbon are organically combined, so that the decomposition ability of powder biological activated carbon on organic matters is greatly improved. Air flotation and ozone oxidation are organically combined, so that an ozone oxidation effect is greatly improved. Mechanical flocculation, copolymerization air flotation, the biological activated carbon and inclined plate settling are organically combined, so that under the conditions of effectively controlling the rotate speed, reducing the hydraulic loss and the like, an aquatic organic matter is removed, and the stable bubble floc is formed. The system provided by the invention is flexible in process and operation manner, can be beneficial for effectively reducing the operation cost, has the advantages of high adaptability to water quality change, high efficiency, convenience in operation and the like, and has a wide application prospect.

The invention relates to the technical field of air-flotationwater treatment, particularly to a mixed-flowair-flotationwater purification method. The method comprises the steps as follows: a flocculating agent is added into to-be-purified water which passes through a flocculating phase, the to-be-purified water enters a collision contact chamber, microbubbles and the to-be-purified water flow in opposite directions to finish full collision and adhesion of the microbubbles and suspended solids in the to-be-purified water; non-adheredand floating floccules or the suspended solids enter an adhesion contact room through a part, which is communicated with the bottom of the adhesion contact room, of the collision contact chamber, the microbubbles and the to-be-purified water flow and are contacted in same directions to finish an effective adhesion process, the bubble floccules float upwards, dregs are discharged, and a purification process is finished. The collision efficiency of the microbubbles and the suspended solids is greatly improved, the collection efficiency of particulate matters is greatly improved, theadaptability to changes of the raw water quality is significantly enhanced, and thedosage of the flocculating agent is effectively reduced.

The invention relates to a damper of suspension nested tuning liquid particles. The damper comprises one or a plurality of damper cavity units, buffer materials, a nested particle group and internal liquid. The nested particle group is composed of a plurality of double-layer nested suspension balls, the small balls and the large balls are fixedly connected through springs, and the interiors of the small balls are filled with air and the particles. The small balls suspend by adjusting the proportion of the air and the particles and serve as a relatively-independent damper body. The interiors of the damper cavity units are filled with the liquid, and the inner walls and the bottoms of the damper cavity units are paved with the buffer materials. Under the effect of wind or / and an earthquake, through continuously mutual collision and friction between the particles and the particles in a particle unit, between the particle group and the inner walls of the cavity units and between a particle unit group and the internal liquid and continuous shaking of the liquid, energy of an earthquake is absorbed and dissipated. The suspension state of the particle unit group can improve collision efficiency between the particles and the shocking frequency of the internal liquid, and through introduction of the buffer materials, the damping capacity of the damper can be improved.

The invention relates to a wet type water film electrode electric-coagulation device, which comprises a shell, a grounding electrode, a high-voltage electrode and a high-voltage alternating-current power supply, wherein the high-voltage electrode is composed of a polar plate and a high-voltage prick; the wet type water film electrode electric-coagulation device is characterized in that the grounding electrode comprises a grounding polar plate and a grounding polar plate water distributor; the grounding polar plate water distributor comprises a water supply pipe, an inclined liquid guide plate, a seamless steel tube, a grounding polar plate fixing groove, a support plate and a bottom support base; the water supply pipe is divided into two sections; one ends of the two sections of water supply pipe are connected through the seamless steel pipe to form an integer, wherein one end of one section of water supply pipe is connected with a water pump; the water supply pipe is above the inclined liquid guide plate and fixedly connected with the inclined liquid guide plate; a circular hole is formed in the water supply pipe next to the inclined liquid guide plate; the inner side of the inclined liquid guide plate is fixedly connected with the top of the support plate; the inclination angle of the inclined liquid guide plate is 8-15 DEG; and a layer of water absorption material is flatly paved on the upper surface of the inclined liquid guide plate.

The invention discloses a symmetric magnetron sputtering process and application of a diamond-like carbon coating thereof. Due to the electron gathering effect in the discharging process of symmetricmagnetron sputtering cathodes opposite in direction, the ionization rate of sputtered carbon particles is increased, the high-energy carbon particles overflow from a gap between the symmetric cathodesand is subjected to doping of metal atoms of a magnetron sputtering metal target so that the diamond-like carbon coating can be formed, and due to the symmetric magnetron sputtering process, the target material utilizing rate can be increased, and the ionization rate of sputtered particles is also greatly increased; and the diamond-like carbon coating is composed of a metal base layer, a gradientcomposite layer and a metal-doped diamond-like carbon coating, and in the deposition process of the diamond-like carbon coating, the diamond-like carbon coating in certain gradient and with stable doping proportion can be obtained by adjusting the power of the magnetron sputtering metal target. Due to the process, high energy ionized carbon ions can be obtained, and the compact and fine diamond-like carbon coating can be formed easily.

A motor vehicle front structure (1) is provided with at least one front frame (31) having two side members (2, 3) and an impact cross-member structure (8). Two crash boxes (4, 5) are fixed between the respective front end (6, 7) of the side members (2, 3) and the impact cross-member structure (8). Each of the crash boxes (4, 5) comprises a first and a second leg (26, 27) which are jointly fixed to the front end (6, 7) of each side member (2, 3). The first and second legs (26, 27) formed in a V merge shape with ends (28, 29) spread from each other in the direction of the impact cross-member structure (8). The spread ends (28, 29) are fixed on end regions (11, 12) of the impact cross member structure (8). Between the legs (26, 27) a connecting structure (40) with a honeycomb construction (41) is arranged.

The invention provides an ion guiding device for a mass spectrometer, and a collision reaction tank. The ion guiding device comprises a first insulating base with a central through hole, a second insulating base with the central through hole, and four electrode posts which are connected between the first insulating base and the second insulating base. The space enclosed by the four electrode posts acts as an ion channel. Shapes of the electrode posts are bent. According to the ion guiding device, interference generated by ions, neutral molecules and photons can be eliminated simultaneously. Besides, the ion guiding device also has the advantages of good mass distinguishing effect and high ion collision efficiency.

The invention discloses a rotary rhombic wire mesh demisting method and a rotary rhombic wire mesh demisting device. The rotary rhombic wire mesh demisting device comprises a rhombic wire mesh demisting system arranged at the top of a desulfurizing tower and an automatic rotary control system. When flue gas flows into the lower layer of the rhombus-shaped wire mesh demister, droplets and other fine particles carried in the flue gas are intercepted by a wire mesh in the rhombus-shaped wire mesh demister, the droplets and the large particles are subjected to inertial separation, the small particles are subjected to coagulation, sedimentation and separation, and the flue gas subjected to preliminary demisting of the lower layer of wire mesh enters the upper layer of wire mesh again and then is demisted and dedusted. According to the device, the wire mesh demister is rotationally combined with the connecting rod, so that the device has the characteristics of efficient demisting and dedusting, uniform flue gas distribution, energy conservation, adaptability to different working condition changes and the like, can effectively solve the problems of poor working condition applicability, large resistance, easiness in scaling and easiness in blockage of the traditional demister, and can effectively reduce the formation of gypsum rain and the secondary carrying of flue gas.

The invention relates to a fine mineral separation method combining cavitation pretreatment and carrier flotation, which is suitable for coal separation. The method includes preparing pulp by utilizing fine minerals, adding a collector, then adjusting the pulp, and circulating the adjusted pulp in a venturi cavitation tube to achieve cavitation; preparing carrier particle pulp, adding a collector,and circulating the adjusted carrier particle pulp in a venturi cavitation tube to achieve cavitation; stirring the adjusted fine mineral pulp after cavitation and the adjusted carrier particle pulpafter cavitation according to a ratio, conveying the mixture to a flotation machine, performing flotation to finally obtain a foam product and a tailing product, and recovering carrier particles. Thesteps are simple, the effect is good, the collision probability of fine particles and flotation bubbles is increased, and the selectivity of flotation is improved. The carrier particles are cleaned bycavitation pretreatment and recycled, thus reducing the loss of the carrier particles; cavitated nano-bubbles on the surfaces of the carrier particles can also promote the adhesion of the carrier particles and the flotation bubbles, thus improving the efficiency of carrier flotation.

The invention discloses a device and method for achieving artificial rainfall through the joint of charged particles and catalysts, and belongs to the technical field of artificial influence weather.The device comprises an aircraft, a catalyst spraying module, a charged particle generation module, a meteorological monitoring and evaluating module and a ground communication control module. The meteorological monitoring and evaluating module is located on the aircraft and used for monitoring climate parameters of a working area of the aircraft in real time; the ground communication control module is located on the ground and used for controlling the power of the catalyst spraying module and the charged particle generation module and the course and speed of the aircraft according to the climate parameters monitored by the meteorological monitoring and evaluating module; the catalyst spraying module and the charged particle generation module spray the catalysts and the charged particles under load bearing of the aircraft. According to the device and method for achieving artificial rainfall through the joint of the charged particles and catalysts, by combining traditional artificial rainfall and electro-catalysis rainfall, the temperature and humidity window demands and catalyst consumption are greatly lowered, and the rainfall cost and environment damage are effectively lowered.

The invention discloses a slurry clarification device which comprises a primary clarification tank, a secondary clarification tank and a spiral conveyer, wherein the primary clarification tank and thesecondary clarification tank are communicated with each other, and the spiral conveyer is used for containing material residues; the primary clarification tank comprises a first straight barrel section, a first conical barrel section, a feeding opening, an overflowing opening, an overflowing pipe and a partition plate; the first conical barrel section is connected with the bottom of the first straight barrel section, the feeding opening and the overflowing opening are arranged on the first straight barrel section, the overflowing pipe is inserted into the first straight barrel section and iscommunicated with the overflowing opening, the partition plate is arranged in the first conical barrel section, the partition plate and an inner wall of the first conical barrel section are arranged at interval, and the partition plate is in a spiral shape; the secondary clarification tank comprises a second straight barrel section, a second conical barrel section, a liquid inlet pipe, a liquid outlet and a plurality of baffle plates; the second conical barrel section is connected with the bottom of the second straight barrel section, the liquid inlet pipe is communicated with the overflowingopening, is arranged along an inner wall of the second straight barrel section and extends to the second conical barrel section, the liquid outlet is arranged on the second straight barrel section, and the plurality of the baffle plates are arranged on the second conical barrel section. The slurry clarification device disclosed by the invention has high clarification efficiency and is also suitable for slurry with a slow sedimentation speed and small grain composition.

The invention discloses a foam dust suppression device applicable to an operation point of an industrial enterprise. The device comprises a foam liquid pumping mechanism, an air supply mechanism, a foam generating mechanism group, a frame and an electronic control unit, wherein the electronic control unit is mounted on the frame and connected with the foam liquid pumping mechanism and the air supply mechanism through circuits; the foam liquid pumping mechanism comprises a liquid pump, a foam liquid tank and a liquid distributor; a regulating valve is arranged in the position of the liquid outlet of the liquid distributor; the air supply mechanism comprises a fan, a gas distributor, a gas regulating valve and an air pipe; the gas regulating valve is arranged in the position of the air outlet of the gas distributor; the foam generating mechanism group comprises more than two foam generating mechanisms; each foam generating mechanism comprises an air duct, a foam liquid spraying component, a foam net, a foam guide cylinder, an angle adjusting rod and a support. The device has the advantages of very little water consumption, good dust suppression effect, simple structure and low cost.

The invention discloses a liquid distributor for an inert particle fluidized bed. The liquid distributor comprises a material inlet pipe and a distribution pipe, wherein one end of the distribution pipe is connected to the material inlet pipe, the other end of the distribution pipe is closed, the distribution pipe has a conical spiral coil pipe type structure, and is uniformly provided with a plurality of spraying ports at intervals, and the diameters of the spraying port are gradually increased from the material inlet end. According to the present invention, the liquid distributor is arrangedon the lower half portion of the inert particle fluidized bed, and is positioned above the inert particles and the distribution plate, and the liquid material enters the distribution pipe through thematerial inlet pipe, and are distributed through the spraying ports, such that the dispersion degree of the liquid material can be effectively increased, the collision efficiency of the inert particles can be improved, the occurrence of caking, wall sticking and other phenomena can be effectively reduced so as to improve the drying efficiency of the inert particle fluidized bed.

The invention relates to a mechanical stirring type co-coagulation flotation coupled two-layer horizontal sedimentation tank water purifying system and a method thereof. Dissolved air flotation is organically combined with a two-layer horizontal sedimentation tank to form a novel floatation and sedimentation tank. Mechanical flocculation and the dissolved air floatation are organically combined through a co-coagulation flotation technology to form co-coagulation dissolved air floatation in order to enhance the stability of a bubble floc. The air floatation are organically combined with ozone oxidation to realize full contact with polluting substances in water in order to greatly enhance the ozone oxidation effect. Mechanical flocculation, co-coagulation flotation and two-layer horizontal sedimentation are organically combined, so the operation is convenient, and the stable bubble floc is formed while effectively controlling the rotating speed and reducing the water conservancy loss. The method has the advantages of flexible running manner, effective reduction of the running cost, high water quality change adaptability, simple structure, high efficiency, convenience in running, and wide application prospect.

The invention discloses an ammonia method desulphurization tail gas aerosol purifying method. An ultrasonic atomization technology is combined with a low pressure drop micro-cyclone demisting technology to control aerosol in ammonia gas desulphurization tail gas. The method comprises the following steps: atomized water drops with the dimensions approaching the dimensions of aerosol are generated through ultrasonic atomization by using an ultrasonic atomization head at the top of a desulfurization tower, the atomized water drops collide with aerosol particles in ascending flue gas and agglomerate to form 5-15 [mu]m fog drops, the grown fog drops are preliminarily separated through a mesh demister, the separated drops enter a low pressure drop cyclone demister and undergo cyclone separation o make 90% or above aerosol particles settle, the settled aerosol particles are discharged from the bottom outlet of a cyclone, and treated gas is discharged from the upper opening of the cyclone.

The invention discloses an efficient air-dissolving air floating machine which comprises an air floating tank, a bubble release tube, a slag scraping device, an air dissolving system, a clear water tube, a first bubble release device, a second bubble release device, a water inlet and a dosing port. A first partition plate and a second partition plate in the air floating tank divide the air floating tank into a contact tank body, a separating tank body and a clear water tank body in sequence, the bubble release tube is vertically mounted in the contact tank body, the bubble release tube comprises an exhaust tube section, a vertical tube section, a rotational flow tube section and a trumpet-shaped tube section which communicate with one another in sequence, wastewater in the bubble release tube collides with microbubbles in reverse directions, are rotationally blended with the microbubbles, and adhere to the microbubbles in the same direction in the contact tank body, microbubble-particle interaction is improved, the adhesion ability of the microbubbles is enhanced, the stability of bubble flocs is improved, the efficiency of colliding among the microbubble-particles is remarkably improved, and the adaptability to changes of the quality of the wastewater is remarkably improved. In addition, the air floating machine has the advantages of being small in occupied area and compact in structure.

The invention belongs to the technical field of the decontamination device and washing machine, and particularly relates to a cleaning ball and washing machine. The cleaning ball comprises a magneticmaterial, and the cleaning ball can be attracted by a magnetic field and demagnetize when the magnetic field disappears. The cleaning ball can be relatively stably collected in the drain valve deviceused in the laundry dehydration process, so as to avoid the cleaning ball bounce back between the inner and outer barrels, and the noise that occurs frequently between the inner and outer barrel wallsduring the dehydration process can be avoided because the cleaning ball is bounced back into the inner and outer barrels; after the dehydration is completed, the cleaning ball returns to the free state, and returns to the inner and outer barrels of the washing machine with the water infusion process, and continues to clean the inner and outer barrels. The cleaning ball not only extends the service life of cleaning ball, but also improves the cleaning effect of the inner and outer barrels of the washing machine, and the noise is low, which improves the user experience.

The invention discloses a strong turbulent flow generating device for rapidly sorting micro-fine particles. The device comprises a cylindrical pipe flow section and a plurality of conical rings arranged in the pipe flow section, wherein the conical rings are uniformly distributed in the axial direction of the pipe flow section, ore pulp flows from the bottom surface to the top surface by arrangingthe installation direction of the conical rings in the pipe flow section, the outer diameter D1 of the bottom surface of the conical ring is the same as the inner diameter of the pipe flow section, aratio of the outer diameter D2 of the top surface of the conical ring to the outer diameter D1 of the bottom surface of the conical ring is 0.3-0.8, the included angle between the outer side wall ofthe conical ring and the inner wall of the pipe flow section is 15-45 DEG, and a plurality of water through holes are uniformly formed in the outer side wall of the conical ring. According to the invention, the turbulent flow intensity can be improved without additional increase of energy consumption, the flotation granularity lower limit is reduced, and the recovery rate of micro-fine particles is increased.

The invention discloses a demisting method and a demisting device based on a rotary screen drum. The demisting device comprises a screen drum demisting system at the top of a desulfurizing tower and an automatic rotation control system for controlling the rotation speed of a screen drum demister. Flue gas flow is entrained and sucked into the screen drum demister by the rotating screen drum demister, and the demisting and dedusting efficiency of the flue gas is effectively improved under the dual effects of inertia separation and centrifugal separation. When the operation condition of the desulfurization system changes, the rotating speed of the worm gear mechanism is adjusted to adjust the rotating angle of the screen drum demister to adapt to different smoke flowing conditions. And the screen drum demister is flushed through the annular flushing water demisting system and the scraper. The device combines inertia separation, centrifugal separation and coagulation dust removal, adopts a worm gear mechanism to realize surface cleaning of the screen drum under all working conditions, has the characteristics of high demisting and dust removal efficiency, small flue gas flow resistance, small flushing water amount, no dead angle, low energy consumption, wide working condition adaptability and the like, and can effectively reduce the formation of gypsum rain.

The invention discloses a high-hygroscopicity light porous particulate warm cloud fog catalyst, which is prepared from the following components in percentage by mass: 10% to 60% of an adsorption material, 30% to 80% of a water absorption material, 0.1% to 5% of a moisture evaporation inhibitor and 0.1% to 5% of a surfactant. By adopting a porous material adsorption technology, a water molecule absorption technology and a molecular resistance evaporation combined technology, a novel efficient warm cloud fog catalyst material which is light in weight, porous and high in catalytic activity is developed. The catalyst material can spontaneously and rapidly collect water molecules in air, achieve the effects of water abstraction, water retention and water locking, generate a phase change effectand release a large amount of chemical heat. Under the condition that the air humidity is not less than 10%, the secondary evaporation phenomenon cannot occur. The warm cloud mist catalyst can reducethe interfacial tension of condensed liquid drops, enhance the colliding efficiency of suspended small liquid drops, accelerate the particle size increase and sedimentation rate of the liquid drops, generate a remarkable dragging effect, inhibit and destroy ascending airflow in cloud, and achieve the effect of quickly eliminating warm cloud mist.

The invention relates to a space cleaning device with low power consumption. The space cleaning device comprises a shell with an opening at the top end, an air molecular density enhancer which sleevesthe side wall, close to the top end of the shell, of the shell, an electronic emitter arranged at the top end of the shell, and a pulse power supply and a free electronic energy regulator which are arranged in an inner cavity of the shell; the air molecular density enhancer is connected with a cathode of the pulse power supply; the electronic energy regulator is connected with an anode of the pulse power supply, and the electronic emitter is connected with the electronic energy regulator. According to the space cleaning device with low power consumption, based on a principle of electron collision and conduction, negative oxygen ions with the high concentration are formed through a method that a pulse power technology is adopted to produce the negative oxygen ion concentration difference,the content of the negative oxygen ions with small particle sizes in the air is increased, the small particle sized negative oxygen ions with the high concentration can be produced at low power, an air supplying device is not required, harmful substances such as ozone nitrogen oxides are not generated, radiation is avoided, the power of the space cleaning device is small, energy is saved, and thespace cleaning ability is greatly improved.

The invention relates to a tower-type dissolved air air-flotation machine, which includes an air floatation reaction tank, a clear water tank, a scum tank, a scraping device, an air dissolving system,a bubble releaser, a static mixer, a stirring motor, an agitator, a spray head, an inlet pipe, an inlet, and an addition port. The air floatation reaction tank is provided with an inner cylinder, andthe inlet and the addition port are sequentially connected to the static mixer, and the inlet pipe and the spray head installed in the inner cylinder through a three-way joint. The agitator and the bubble releaser are installed at the bottom of the inner cylinder. Sewage water and microbubbles are subjected to reverse collision, stirred mixing, and adhesion in same direction in the inner cylinder, the interaction of microbubbles and particles is improved, and the adhesion of microbubbles is strengthened, the stability of a bubble flocculant body is enhanced, the collision efficiency of the microbubbles is significantly enhanced, and the ability to adapt to changes in the quality of the wastewater is significantly enhanced. The air flotation machine has the advantages of simple structure and less land occupation.