44results about How to "Small bubble size" patented technology

A method of making an aqueous ozone solution for an industrial cleaning system is described. The method includes providing a reaction vessel for entraining ozone gas in an aqueous solution. The reaction vessel includes a conical-shaped surface having a two or more edges or ridges. The conical-shaped surface defines an interior, and two or more edges or ridges are in contact with the interior. The reaction vessel is in fluidic communication with a supply of water. The reaction vessel is in fluidic communication with a supply of a first aqueous ozone solution. The first aqueous ozone solution is directed to the conical-shaped surface. Water is directed to the conical-shaped surface, and the water and the first aqueous ozone solution are mixed to form a second aqueous ozone solution.Compositions for aqueous ozone solutions are also described. The aqueous ozone solution contains approximately 1 part by volume water mixed with approximately 4 parts by volume to approximately 9 parts by volume of a first aqueous ozone solution to form a second aqueous ozone solution that has an oxidation reaction potential of up to approximately 2.6. The second aqueous ozone solution has an ozone concentration of up to approximately 20 ppm.

Coal fines are processed by flotation separation to separate coal particles from ash-forming component particles. Coal fines are mixed water under high shear mixing conditions to form an aqueous slurry of coal fines containing between 15 wt. % and 55 wt. % coal fines. The aqueous slurry is introduced into a coal flotation cell to separate coal particles from ash-forming component particles by flotation separation, wherein the coal fines have a particle size less than 500 μm, and more preferably less than 300 μm. Bubbles are generated in the coal flotation cell having a bubble size and bubble quantity selected to float the coal particles and to form a coal-froth containing at least 15 wt. % solid particles. The solid particles include coal particles and ash-forming component particles. The coal-froth is collected for further processing.

A vented closure for a liquid container which will not freely pour includes a cap hinged at one side and movable between open and closed positions relative to a base collar. In an open position, a primary fluid passageway extends through a shaped mouthpiece which is elongated and tapered to conform to a user's mouth. One or more air vents of small size are located in a protected floor of the base collar at positions spaced within predetermined ranges of offsets from the dispensing opening so as to convey liquid into contact with the air vents in a manner to self-seal the air vents by surface tension of the liquid until an unbalance force is present. The cap and collar mate along an offset diagonal edge, and a grip area for the user's thumb or finger is offset from a center line. The offsets cause the cap to flip open with additional clearance and without obstructing a user's nose.

The invention discloses an airlift reactor having a spiral porous sieve plate. The reactor includes a reaction tank body. A flow guide cylinder and a gas distributor are arranged in the reaction tank body. The gas distributor is disposed under a raising section of the flow guide cylinder. A spiral porous sieve plate is arranged in the raising section of the flow guide cylinder. The body of the spiral porous sieve plate is in a spirally raising shape, so that a part of two / three-phased flow in the raising section is guided. There are a plurality of sieve pores in the body of the spiral porous sieve plate, so that the rest of the two / three-phased flow in the raising section is subjected to flow guiding and bubble breaking. The airlift reactor considers both macroscope mixing and microscope mixing, wherein the liquid is driven by ejected gas to flow cyclically, so that raising large bubbles are broken into small bubbles. The reactor can effectively inhibit aggregation of bubbles, increases gas holdup, and increases volume mass transfer coefficient.

The invention relates to a method and a device for dissolving gas in a liquid-phase circulating hydrodesulfurization system, and provides a method for dissolving gas in a liquid-phase circulating hydrodesulfurization system, which comprises the following steps of: introducing new hydrogen, raw oil and circulating saturated oil refluxed from a hydrogenation reactor into a gas-liquid mixing pump, and fully mixing under the strong turbulence state; introducing the mixed materials into a gas-liquid separation tank, collecting big bubbles, removing the big bubbles, and introducing the mixed materials into the hydrogenation reactor for hydrogenation; and introducing the circulating saturated oil refluxed from the hydrogenation reactor into the gas-liquid mixing pump again, mixing with the raw oil and the new hydrogen entering the gas-liquid mixing pump, and introducing the mixture into the hydrogenation reactor again. The invention also provides a device for dissolving gas in the liquid-phase circulating hydrodesulfurization system.

A spray solution generates a foam to sanitize surfaces. The spray dip solution is a mixture of the solution with carbon dioxide and nitrous oxide in a closed vessel. After ejecting the liquid dip solution mixture from a nozzle a foam is generated from the solution as the solution hits a surface. The spray can be applied to a number of different surfaces. In an embodiment of the invention, the spray can be applied to cow teats without risk of cross-contamination of the nozzle or other equipment. The generated foam remains intact on the teat for a prolonged period of time, increases the area of the teat in contact with the foam during the treatment period and disperses skin-conditioning fats present in the dip treatment, thereby increasing the coverage of the skin conditioner on and within the epidermis of the teat and surrounding areas.

The invention relates to an anti-biological clogging device for a drip-irrigation system. The drip-irrigation system is started, an air intake brake valve is opened, an ozone generator is started, and compressed water which comes from the head part of the drip-irrigation system is sprayed at high speed from a jet orifice of a jet nozzle so as to form the negative pressure in a gas injection cavity; and under the action of the negative pressure, the ozone generator ensures that ozone generated through air ionization enters the gas injection cavity through the air intake brake valve, a check valve and an air inlet pipe along with the air filtered by an air filter, and enters an oscillating cavity for vortex oscillation, stirring and aerification along with the high-speed water flow sprayed by the jet nozzle so as to form 'ozone water' of which gas and liquid are distributed uniformly, and the 'ozone water' enters the drip-irrigation system to kill microorganisms in flow channels and cansynchronously inhibit crop root systems from growing toward the direction of a water outlet of a drip irrigation emitter in an underground drip-irrigation system, so that the aim of biological clogging resistance of the drip-irrigation system is fulfilled. Compared with a method of injecting a chemical agent into irrigation water, the invention has the advantages that: the residue of harmful substances which can pollute the environment is not produced, and the risk of using dangerous chemical agents is avoided.

The invention discloses a micro-bubble generator and gas-liquid reactor comprising same. The micro-bubble generator is composed of a liquid inlet pipe, a gas inlet hole and a Venturi pipe. The Venturipipe at least includes, successively from bottom to top, a shrinking portion with sealed bottom, a throat tube portion and an expanding portion, wherein the liquid inlet pipe is located at the bottomof the shrinking portion of the Venturi pipe and the gas inlet hole is formed in the throat tube portion. The micro-bubble generator has compact structure, is low in energy consumption, is good in micro-bubble generation effect and is convenient to maintain. By using the micro-bubble generator, the gas-liquid reactor is greatly improved in gas-liquid mass transfer efficiency.

The invention relates to a device for removing nitrate nitrogen in water and an application method of the device. The device is used for solving such problems of existing method for removing nitrate nitrogen in water as low electrochemical denitrification current efficiency, poor selectivity of a reaction product and need of the addition of H2 during catalytic hydrogenation and comprises a direct current power supply, a pH meter, a micro-peristaltic pump, a microfiltration membrane assembly, a water inlet pump, a first circulating pump, a water outlet pump, a cathode chamber, a cathode plate, an anode plate, an anode chamber, a second circulating pump and a proton exchange membrane. The method comprise the following steps: adding the polluted water body into the cathode chamber, adding a catalyst into the cathode chamber, switching on the direct current power supply, enabling nitrate ions adsorbed on the cathode plate to accept electrons and be gradually reduced to N2; enabling generated H2 to be gathered from the cathode plate into microbubbles, diffuse and be adsorbed on the catalyst, in the presence of the catalyst and reducing the residual NO3<-> into N2 with H2 as an electron donor and discharging into the air. The device is used for removing nitrate nitrogen in water.

The invention discloses a spraying and printing valve of micro bubble generator based on carbon nano-tube and the preparing method. The spraying and printing valve comprises glass substrate or silicon substrate of micro bubble generator with carbon nano-tube and silicon bottom substrate by micro machining. The micro bubble generator with carbon nano-tube is constituted by carbon nano-tube, two golden electrodes and silicon dioxide layer. The carbon nano-tube is set between two golden electrodes. The silicon dioxide layer is covered at the position where the carbon nano-tube is contacted with two golden electrodes. Via hole is set on the silicon bottom substrate as fluid inlet pipe and groove connected with the fluid inlet pipe is set on the surface of silicon bottom substrate. The substrate is bonded with the silicon bottom substrate so as to make the micro bubble generator with carbon nano-tube face to the groove to form nozzle. The preparing method is that the micro bubble generator with carbon nano-tube is prepared on the substrate; fluid inlet pipe and groove are prepared on the silicon bottom substrate; they are bonded together. The invention conquers the shortage that power consumption of conventional micro bubble generator is large and possesses the potentiality of good high density integration. The invention has a wide application prospect in advanced manufacturing field.

The invention relates to a nano microbubble generation device and particularly discloses a device for generating a high quantity of nano microbubbles in water. The device for generating the high quantity of nano microbubbles in water comprises a filtering and buffering tank, wherein an inlet of the filtering and buffering tank is connected with a water source; an outlet of the filtering and buffering tank is connected with a high-pressure centrifugal pump; an outlet of the high-pressure centrifugal pump is connected with a high-pressure jet device; a gas inlet of the high-pressure jet device is connected with a gas pressure stabilizing tank; a gas flowmeter is mounted at the front end of the gas pressure stabilizing tank; the front end of the gas flowmeter is connected in parallel with anair filter and a gas quick connector; an outlet of the high-pressure jet device is connected with a nano microbubble releasing device through a liquid pressure stabilizing tank. The device for generating the high quantity of nano microbubbles in water is simple in structure, reasonable in design, low in production cost and high in dissolution rate; the generated nano microbubble water flow is high; the particle size of the air bubbles is small and can reach up to 5-20nm; the device is suitable for extensive popularization and application.

A process for preparing the sodium salt of 4,4'-dinitrobistyrene-2,2'-disulfonic acid (DNS) from NTS includes preparing the sodium hydroxide solution of NTS, adding inertial solid particles, introducing air or oxygen, regulating pH value, oxidizing condensation reaction at a certain temp, acidifying, salint-crystallizing and filter. Its advantages are high output rate, and low energy consumption.

The invention provides a gasification furnace chilling chamber containing a flow-guiding cylinder and an application method thereof. The gasification furnace chilling chamber comprises a shell, wherein a downcomer is arranged in the shell; the outer side of the downcomer is sleeved by a coaxial flow-guiding cylinder; an annular gap is formed between the flow-guiding cylinder and the downcomer; oneend of the downcomer is connected with a gasification furnace; the other end of the downcomer is provided with a gas distribution device which is a conical section in butt joint with the outer edge of the downcomer; and the conical section is provided with gas holes. According to the invention, liquid circulation is formed through arrangement of the flow-guiding cylinder, so deposition of fine coal ash particles is prevented, and the problem of blockage caused by fine particles is effectively solved; meanwhile, through arrangement of the gas distribution device, small bubbles can be effectively formed; the phase boundary area of the bubbles is increased; the humidifying, dust-removing, ash-removing and cooling effects of a water bath are greatly improved; thus, the situation that synthesis gas carries excessive coal ash to enter a next working section is reduced.

An improved magnesium die casting system incorporates filling of the shot sleeve from the underside and / or in-line re-melting of scrap magnesium using a re-melt furnace. A pump is used to transfer molten magnesium from a casting furnace to the shot sleeve through an underflow filling tube. The shot sleeve is filled in a laminar manner, minimizing entrapped gases. The in-line re-melt system allows recycling of scrap in-house and reduces energy cost associated with heating and re-heating scrap. The improved system increases casting quality and reduces scrap rates and recycling costs.

The invention discloses a method for prolonging milk fresh-keeping time by utilizing CO2 micro-nano bubbles, which belongs to the technical field of milk fresh-keeping. The method comprises the following steps: checking and accepting raw milk: checking and accepting the raw milk in three aspects of sensory examination, physical and chemical indexes and microbiological examination; mechanically filtering the milk: filtering the milk by using milk filter paper under the pressure condition of 50kPa; mixing the milk and CO2 and then introducing a mixture into a micro-nano bubble device, and forming a milk-CO2 micro-nano bubble mixed system; and storing the milk-CO2 micro-nano bubble mixed system obtained in the above step 3 in a milk storage tank which is cleaned, disinfected and sterilized inadvance. The problems of microbial pollution and the like in the transportation process from a pasture to a processing factory in the traditional milk processing process are solved by utilizing the small bubble size, high solubility, high adsorption rate, low rising speed in milk and the bacteriostatic action of CO2 of the micro-nano bubbles, and the effect of better prolonging the fresh-keepingperiod of the milk is achieved.

The invention provides a gas-liquid-solid three-phase stirred tank reactor which comprises a tank body, a stirring shaft is inserted into the top of the tank body, the stirring shaft is sequentially provided with a funnel, an inclined blade stirring paddle, a first steering cone-shaped body, a second steering cone-shaped body and a flow guide refining paddle from top to bottom, a plurality of flow guide refining plates are uniformly distributed on the outer side of a cavity in the tank body, and a gas ejector is arranged at the bottom of the kettle body. According to the gas-liquid-solid three-phase stirring tank type reactor, the inclined blade stirring paddle executes gas-liquid diffusion and reaction liquid pumping effects in the rotating process, the flow guide refining paddle executes the flow guide and particle and bubble refining effects in the rotating process, and the flow guide refining plate executes the flow guide and particle and bubble refining effects; by the effects of the above components in the gas, liquid and solid phases, large-scale axial and radial movement and molecular-level mixing are formed in the reactor, so that reaction materials are distributed more uniformly, reaction is performed more thoroughly, reaction heat release is more uniform, and meanwhile, the backmixing degree is reduced by large-scale circulating flow.

A spray solution generates a foam to sanitize surfaces. The spray dip solution is a mixture of the solution with carbon dioxide and nitrous oxide in a closed vessel. After ejecting the liquid dip solution mixture from a nozzle a foam is generated from the solution as the solution hits a surface. The spray can be applied to a number of different surfaces. In an embodiment of the invention, the spray can be applied to cow teats without risk of cross-contamination of the nozzle or other equipment. The generated foam remains intact on the teat for a prolonged period of time, increases the area of the teat in contact with the foam during the treatment period and disperses skin-conditioning fats present in the dip treatment, thereby increasing the coverage of the skin conditioner on and within the epidermis of the teat and surrounding areas.

The invention discloses a fluidized bed reactor and a reaction system. The fluidized bed reactor comprises a reactor main body (1) with an inlet (11) and an outlet (12), the reactor main body (1) comprises a reaction section (13) provided with a catalyst bed, and the catalyst bed can be in a fluidized state under the action of fluid injected from the inlet (11); the fluidized bed reactor further comprises a bubble generator (2), and the bubble generator is provided with a gas-liquid inlet (21) and a gas-liquid outlet (22) and can be used for mixing incoming gas and liquid and crushing generated bubbles, and the gas-liquid outlet (22) of the bubble generator (2) is connected with the inlet (11) of the reactor main body (1). The fluidized bed reactor and the reaction system provided by the invention are simple in structure and easy to operate, the mixing degree between the gas-liquid reaction material and the catalyst is enhanced, the gas-liquid distribution is uniform, and the interphase mass transfer efficiency is greatly improved.

It has been discovered that the efficiency of asphalt blow stills can be improved by sectionalizing the blow still with perforated plates at various heights within the blow still. The perforated plates which contain a multitude of holes act to reduce air bubble size and improve the dispersion of the air bubbles throughout the asphalt flux. This increases the total surface area per unit volume of the air bubbles and promotes a faster processing time. The perforated plates also increase the contact time between the air bubbles and the asphalt flux which further results in improved efficiency and reduced blow times. This is beneficial because faster processing times can be achieved resulting in more efficient use of equipment, higher levels of productivity, lower energy requirements, cost savings, reduce blow loss, and reduced thermal history to which the asphalt is exposed.

The invention discloses an air injection device for a subsurface drip irrigation system. A subsurface drip irrigation system is started, an air inlet gate valve is switched on, and water with pressure from the head of the subsurface drip irrigation system is injected out at a high speed from the injection orifice of an ejector nozzle to form negative pressure in an air injection cavity; under the action of the negative pressure, air enters the air injection cavity from an air filter, the air inlet gate valve, a check valve and an air inlet pipe; the air and high-speed flow ejected out of the ejector nozzle enter a primary oscillation cavity via a round throat path of which the diameter is d1 to carry out primary vortex oscillation stirring 'aerification'; then, the mixture enters a secondary oscillation cavity via a round throat path of which the diameter is d2 to carry out secondary vortex oscillation stirring 'aerification'; and finally, the mixture enters the subsurface drip irrigation system via a round throat path of which the diameter is d3 and a gradual-change runner. The air injection device has the advantages of good air injection effect, high aerification rate and low input and operation cost, is simple and durable, does not need additional pressurized driving devices and is especially favorable for improving the anti-blockage performance of the injection device.

The present invention provides a horizontal and efficient flotation separation system for sewage air floatation treatment. The system includes an air flotation tank, a baffle structure and an efficient oil collection device; the inside of the air flotation tank is divided into several stages of mixing separation zones and clear water zones, which are arranged along the fluid flow direction; each stage of the mixing separation zone is separated by baffle structure; the zone between an upper baffle and a lower baffle is a gas-water mixing zone; the bottom of the gas-water mixing zone is provided with a dissolved gas and water release device connected with a micro-bubble dissolved gas and water generator; a zone between the lower baffle and an upper baffle of a next level of mixing separation zone is a settlement separation zone; the last stage of settlement separation zone is provided with a corrugated plate packing; the efficient oil collection device is disposed over the baffle structure; and the clear water zone is provided with an oil collection tank. The present invention has the advantages of improving gas-water contact mixture efficiency and clear water separation after contact, improving the separation efficiency of a stability chamber, reducing equipment size and energy consumption, and reaching high system stability and of low-cost maintenance.

The invention discloses an oxygen-enriching biological oxidation system, which comprises a biological oxidation pool and an aeration device, wherein activated sludge is filled in the biological oxidation pool; the aeration device comprises an air dissolving device and a releaser; the air dissolving device is provided with an air inlet, a water inlet and a water outlet; air and water are respectively introduced into an inner cavity of the air dissolving device from the air inlet and the water inlet; air in the air dissolving device is dissolved into water under the pressure state to form air dissolving water; the water outlet is connected with the releaser; the releaser is arranged in the biological oxidation pool and is covered by the activated sludge; the air dissolving water in the air dissolving device is released into the biological oxidation pool by the releaser. The oxygen-enriching biological oxidation system has the advantages that clean water and air are simultaneously pumped into the air dissolving device by using an air dissolving mechanism; the air is blended into the water under the pressure state; the air dissolving water is formed and is then released into the biological oxidation pool; through oxygen-enriching water, the utilization capability of microbes on the air is greatly improved; the effective utilization rate of the air is improved.

The invention discloses a composite frame type low-voltage bus slot. The composite frame type low-voltage bus slot comprises a plurality of bus straight-line segment brackets, a joint segment is connected between every two bus straight-line segment brackets; the invention further discloses a manufacturing method of the composite frame type low-voltage bus slot, and mainly comprises the following steps: selecting material, pre-manufacturing the straight-line segment bracket, filling potting material, manufacturing the joint segment, and filling the potting material; the application performance of the low-voltage bus slot is improved, the conductor and the insulating sleeve are fixed through the tenacity material; the expansion defect between the conductor and the insulating material is avoided when the temperature of the conductor is changed; the low-voltage bus slot is low in internal bubble content, small in bubble size, low in dielectric loss of insulating material, high in voltage resistance, and low in ageing life; the insulating material is high in density, good in tensile resistance, bending resistance and torsion resistance; the insulating material can adopt the heating curing process, the curing period is shortened to tens of minutes or several hours, and the insulating material can be extensively applied to the industrial and mining power distribution industry.

The invention discloses an improved DMTO reactor. According to the invention, by means of arrangement of a grating in a dense-phase bed layer zone of the DMTO reactor, entrainment amount of a catalyst is reduced and the concentration of the catalyst in a dilute-phase bed layer is reduced, so that a secondary reaction is reduced. Meanwhile, bubbles are reduced in size so that the disturbance on the bed layers is reduced when the bubbles are broken, so that the bed layers are more stable and reduced in backmixing. By means of the technical scheme, selectivity of methanol to olefin is increased, thereby increasing the yield of olefin.

A spray solution generates a foam to sanitize surfaces. The spray dip solution is a mixture of the solution with carbon dioxide and nitrous oxide in a closed vessel. After ejecting the liquid dip solution mixture from a nozzle a foam is generated from the solution as the solution hits a surface. The spray can be applied to a number of different surfaces. In an embodiment of the invention, the spray can be applied to cow teats without risk of cross-contamination of the nozzle or other equipment. The generated foam remains intact on the teat for a prolonged period of time, increases the area of the teat in contact with the foam during the treatment period and disperses skin-conditioning fats present in the dip treatment, thereby increasing the coverage of the skin conditioner on and within the epidermis of the teat and surrounding areas.

The invention relates to a method and a device for dissolving gas in a liquid-phase circulating hydrodesulfurization system, and provides a method for dissolving gas in a liquid-phase circulating hydrodesulfurization system, which comprises the following steps of: introducing new hydrogen, raw oil and circulating saturated oil refluxed from a hydrogenation reactor into a gas-liquid mixing pump, and fully mixing under the strong turbulence state; introducing the mixed materials into a gas-liquid separation tank, collecting big bubbles, removing the big bubbles, and introducing the mixed materials into the hydrogenation reactor for hydrogenation; and introducing the circulating saturated oil refluxed from the hydrogenation reactor into the gas-liquid mixing pump again, mixing with the raw oil and the new hydrogen entering the gas-liquid mixing pump, and introducing the mixture into the hydrogenation reactor again. The invention also provides a device for dissolving gas in the liquid-phase circulating hydrodesulfurization system.

The invention discloses a device and a method for treating chlorophenol wastewater by an ultrasonic-assisted active membrane electrode, relates to the technical field of sewage treatment, and providesa method and a device for treating chlorophenol wastewater by an ultrasonic-assisted active membrane electrode to solve the defects or improvement requirements of an existing electrochemical oxidation device. According to the scheme, oxygen bubbles separated out of the active membrane electrode are broken to generate instantaneous high temperature and high pressure under the cavitation action ofultrasonic waves, the yield of hydroxyl radicals is increased, the membrane flux of the electrode is improved, mass transfer of the surface of the electrode is enhanced, the electrochemical reaction rate is increased, and pollutants are efficiently degraded; besides, ultrasonic waves have a continuous cleaning effect on the surface of the electrode pore channel, the problem of pollution caused bylong-time operation of the electrode is solved, and thus the service life of the electrode is prolonged. According to the method, chlorophenol wastewater is efficiently degraded through acoustoelectric driving reaction, operation is easy, convenient and efficient, stability is high, secondary pollution is avoided, and the method is an ideal environment pollution treatment technology. The method isapplied to the field of environmental pollution treatment.

The invention relates to a new technology of micro-nano bubble flocculation-air flotation. The micro-nano bubble introduction system of the present invention is connected to the aeration head, the PAC dosing system and the PAM dosing system are connected to the source water lifting system, the source water lifting system is connected to the water distribution head, and the lifting bucket and lifting impeller are arranged in the middle of the flocculation-air flotation area , the lifting impeller is connected to the motor; the lower part of the flocculation-air flotation area enters the water distribution area, the upper part of the inclined tube area is connected to the water outlet, and the lower part is connected to the concentration area. The invention overcomes the problems of poor mechanical flocculation effect, large dosage of PAC agent, additional addition of PAM coagulant and environmental pollution caused by high-efficiency precipitation technology. The present invention utilizes the micro-nano bubbles to suck air into the pump through the suction of the multiphase flow pump, and generates them through the high-speed cutting of the impeller, and can also be generated by using a special micro-nano bubble generating device. Compared with the bubbles released by traditional pressurized tanks, micro-nano bubbles have the characteristics of small bubble size, large specific surface area, high adsorption efficiency, and slow rising speed in water.