266 results about "Airlift" patented technology

A device configured to securely and automatically receive parcel is described. The device is equipped with a front door and an automatic top rolling door in order to accommodate parcel delivery via conventional parcel delivery personnel, or delivery via airlift from an unmanned aerial vehicle (UAV). The device is also equipped with a secure internet connection which facilitates communication between recipient and delivery personnel, as well as expedites the delivery confirmation process upon parcel delivery. Audio and video capture and transmission equipment on-board the device permit the recipient to remotely provide access to the device upon authentication of identity and/or credentials.

A variety of devices capable of bringing ocean water from a considerable depth to the surface using airlift systems. A bubble of air released in the ocean will rise to the surface. If a gas diffuser is employed to release millions of bubbles of air, the rising cloud of bubbles will entrain the surrounding water and pull it toward the surface.

The invention discloses a method for green and energy-saving extraction of a seabed unstratlfied rock natural gas hydrate and belongs to the technical field of natural gas extraction. The method comprises the steps of pre-treatment of the natural gas hydrate, pre-collection of the natural gas hydrate, separation of the natural gas hydrate, and collection of the natural gas hydrate. The working principle is that on the premise that the ambient temperature and pressure of a natural gas hydrate formation are not changed, natural gas hydrate solid sediment is extracted through submarine mining, phase change is conducted on the natural gas hydrate by means of hot seawater to generate an airlift effect, and then the natural gas hydrate is lifted the sea surface to be processed and natural gas is collected finally. Meanwhile, the airlift effect serves as the power source of an extraction head, external energy consumption is reduced, and sea pollution is avoided. The method is a green natural gas collection method.

Uses of a method of producing small bubbles of gas in a liquid include gas transfer in airlift bioreactors and anaerobic digesters, and particle separation. The method uses a source of the gas under pressure, a conduit opening into a liquid and oscillating the gas passing along the conduit. The oscillation is effected by fluidic oscillator, comprising a diverter that divides the supply into respect outputs, each output being controlled by a control port, wherein the control ports are interconnected by a closed loop. Separation of algae from water involves delivering a laminar flow of microbubbles in the range 10 to 100 μm diameter. Such bubbles also deliver a laminar flow in bioreactors that delivers enhanced liquid flow despite the small bubbles, which improves mixing and also enhances efficiency of gas exchange and retention of the bubbles in the reactor.

The invention discloses an airlift type internal circulation intermittent aerobic granular sludge reactor, which comprises an organic glass column, a temperature controller, a water inlet tank, an aeration pump, a water feed pump, a draining pump, a flow meter, a programmable logical controller, etc. The main body of the reactor is the organic glass column and can be divided into an inner sleeve and an outer sleeve, and the inner one is an upspout, while the outer one is a downcast pipe; the ratio of height to diameter is 15. The exterior of the downcast pipe is provided with a water bath heating casing for controlling reaction temperature. Mixed liquor in the reactor flows between the upspout and the downcast pipe in internal circulation to endow granular sludge with a self-balanced micro-ecosystem, the property of the micro-ecosystem is suitable for an up-flow type wastewater treatment system. The reactor adopts the sequence batch operation mode and can realize automatic control by the programmable logical controller. The reactor of the invention has the advantages of flexible operation, compact structure, little sludge remained, good treatment effect, and the like, and can bear high volume load and impact load; furthermore, the reactor has small occupying space and can reduce pork barrel due to relatively large H/D.

The present invention relates to an airlift type photobioreactor which solves problems of complicated structure, poor gas-liquid mixing efficiency and low microcystis fixing CO2 speed rate in the existing reactor. The reactor includes a glass tank equipped with a culture medium intake, a nutrient fluid intake, a cooling water outlet, an air intake and an air outlet, the glass tank inner side is annual equipped with multi-group recuperator tubes communicated with the cooling water intake and the cooling water outlet, an ascending conduit tube divides the glass tank into an ascending area and a descending area, the glass tank top is equipped with an air separating area, the air inlet communicates with an air distributor located on the ascending area bottom through the air inlet tube, the descending area is equipped with a nutrient fluid outer circulation pipeline, the nutrient fluid outer circulation pipeline communicates with the air inlet pipeline through a water pump. The photobioreactor has simple structure and convenient operation which is particular suitable for photosynthesis fixing CO2 with high efficiency by using microcystis in CO2 emission reduction system. The emission reduction speed rate can reach above 50%, and has low operation cost and is friendly to environment.

A continuous method of cumene oxidation in a gas-liquid system is provided, where the liquid phase is represented by cumene and its oxidation products and the gas phase is represented by air. The oxidation process can be carried out either in a reactor series or in a single reactor at least one of which is preferably equipped with at least two airlift-type trays. When specific CHP concentration is achieved, the oxidation products are discharged from the to reaction zone and treated in a mixing device with aqueous ammonia or water to remove organic acids such as formic acid, benzoic acid, etc. and to remove phenol, which is an inhibitor of oxidation reaction. The cumene oxidation product stream, free of organic acids and phenol is recycled to the same reactor in the case of single reactor, or is passed to the next reactor of the series in the case of reactor series. In all cases, the oxidation products treated with water or aqueous ammonia is first directed to a unit for separation of aqueous phase from organic products and then anhydrous organic product stream is forwarded to the next reactor of the series, or recycled to the single reactor for the continued cumene oxidation until the required CHP concentration is achieved. The airlift-type trays in at least one process reactor accelerate the cumene oxidation reaction therein while increasing the process selectivity and enabling the process to be conducted at lower temperature, improving safety thereof. Advantageously, lower quality cumene having impurities such as sulfur-containing trace elements, can be used in the inventive process while maintaining a high process selectivity.

A submerged, vertically-mounted membrane device, the device receiving a gas-sparged feed stock at a bottom feed inlet to provide airlift circulation of the feed stock through the device and separating the feed stock into filtrate and residual gas-containing retentate which passes from the top end of the device. The device comprises a structure of one or more monolith segments of porous material each monolith segment defining a plurality of passageways extending longitudinally from a bottom feed end face to a top retentate end face. A porous membrane is applied to the walls of the monolith segment passageways to provide a separating barrier. At least one filtrate conduit within the device carries filtrate from within the device toward a filtrate collection zone of the device, and the filtrate conduit provides a path of lower flow resistance than that of alternative flow paths through the porous material. A seal is provided to separate feed stock and retentate from the filtrate collection zone.

The present invention discloses one kind of airlift inner circulation sewage treating process and apparatus. The biochemical tank is provided with partition board or wall for separating the tank into one aeration area A with bottom aeration system for blasting air and one non-aeration area B. The area A is provided with the primary guide plate to alter water flow direction and realize water circulation between the area A and the area B; and the area B is provided with stuffing. The present invention has simple structure, low power consumption, increased sewage reflux ratio and raised pollutant eliminating effect.

The invention provides an intelligent high-speed cargo conveying system of a pipeline train and belongs to the field of logistics transportation. By virtue of the intelligent high-speed cargo conveying system, one third global land transportation problem is mainly solved. Traditional land transportation, river transportation and air transportation are overhigh in manpower and resource input cost and high in resource consumption, cause environment pollution and are easily influenced by weather and air control. A flexible and convenient transportation mode is adopted for the pipeline train, so that a rapid, safe and accurate logistics-freight platform is supplied and modernization demands are met. The pipeline train can be selectively positioned beside a railway or a highway, a positive one-way pipeline and a negative one-way pipeline are laid, and the pipelines are internally provided with four rails, two power sources and two signal rails; the head of the pipeline train is bullet-shaped, the body of the pipeline train is cylindrical; each carriage is provided with two independent electric drive systems, three independent control systems, a fault emergency treatment system and a communication, locating, monitoring and power distribution system device. The operation in the whole running process of the train is controlled by a main control center and a sub-control center, the train is in an alternate operation mode and can achieve high-speed cargo operation at a speed per hour of 300km/h-700km/h.

The present invention belongs to the technology of fermenting alcohol production, and is especially alcohol preparing airlift fermentation and separation coupling technological process and special equipment. The equipment is one airlift alcohol fermenting reactor, which includes one tank, one inner circulating guide tube concentrically set inside the tank, one gas distributor below the guide tube, and one active carbon adsorbing and desorbing unit comprising condensator and two parallelly connected adsorbing active carbon towers. The airlift alcohol bioreactor is maintained in a 4000-8000 Pa vacuum with a water ring pump; the two parallelly connected adsorbing active carbon towers are used to adsorb and desorb the pumped mixed gas alternately; and the condensator is used to collect the desorbed alcohol.

The invention provides a reactor body and a multifunctional airlift tube photobioreactor. The reactor body, namely a reaction device, comprises two or more transparent perpendicular pipelines arranged side by side, and connecting tubes or connecting grooves communicated with the tops and the bottoms of the perpendicular pipelines respectively. The photobioreactor comprises the reactor body, a ventilation system and an optional parameter detection and control system. The invention further provides a microalgae culture method which comprises the step that the reactor body or the photobioreactor is used for carrying out photoautotrophic culture, photoinduction culture and mixotrophic nutrition culture of the microalgae. The multifunctional airlift tube photobioreactor has the advantages of being large in illumination specific surface area, high in gas-liquid mass transfer coefficient, small in fluid shear force and the like; engineering enlargement, cleaning and maintenance are easy, operation is convenient, high-density, high-efficiency and large-scale photoautotrophic culture, photoinduction culture and mixotrophic nutrition culture of the microalgae can be achieved, high-efficiency culture of photosynthetic bacteria can also be achieved, and meanwhile the multifunctional airlift tube photobioreactor can be used for microalgae carbon sequestration and wastewater treatment.

The invention discloses a cyclone airlift fermentation tank. The cyclone airlift fermentation tank comprises a tank body, an air inlet device, an exhaust device, a cooling device, and an air inlet pipe and an exhaust pipe which are arranged on the tank body, wherein the air inlet pipe is connected with the air inlet device; and the exhaust pipe is connected with the exhaust device. The cyclone airlift fermentation tank is characterized in that the air inlet pipe is arranged at the middle position of the bottom of the tank body or a position which is close to the bottom of the tank body; the exhaust pipe is arranged at the middle position of the top of the tank body; the air inlet device is a cyclone mixer, is arranged at the bottom in the tank body or a position which is close to the bottom of the tank body, and is connected with the air inlet pipe; and a flow guiding device is arranged above the cyclone mixer, has a cylindrical structure with two open ends, and is longitudinally arranged on the axis of the tank body. The cyclone airlift fermentation tank has a concise structure, is relatively low in aeration pressure, but can ensure that gas and liquid are in a cyclone state, has a good gas-liquid mixing effect, is low-consumption and efficient, can exhaust cleanly, is high in fermentation efficiency, and is applicable to the submerged fermentation of aerobic microorganisms, and a stirring device is not arranged.

A method for lifting liquids with airlift consisting of a lift pipe having a suction port, a discharge port, and an air feed including steps of (a) feeding air into the lift pipe, (b) sucking liquid in the suction port, (c) discharging liquid and air at the discharge port, and (d) inducing rotational motion of liquid at the discharge port, whereby the efficiency of said airlift is increased and splashing and heisering are eliminated. An airlift apparatus with means for inducing rotational motion at the discharge port is also provided. The means for inducing rotations can be an inclined flat or curvilinear baffle.

The present invention relates to an aeration device for use in a liquid medium. The device includes a housing adapted to float within the medium such that a top portion thereof remains above a top surface of the medium. The housing has a bottom portion and an open side portion. The device further includes a hose affixed to the bottom portion of the housing substantially parallel to the surface of the liquid medium. The hose has a wall with a plurality of pores formed therein. The device further includes a gas-supplying pipe affixed to the hose and means for supplying a gas to the pipe such that the gas passes through the pipe and into the hose.

An emergency mobile sleeping unit transportable from site to site by tractor-trailer, railway, airlift, or by water includes a tractor-trailer unit modified to create sleeping quarters and an office and workstation usable by a number of individuals. The sleeping unit can be in a number of different configurations each of which can include several rows of flip up sleeping bunks attachable to the sidewalls of the unit and that can be opened for use and folded up to open the interior of the unit when the bunks are not in use, an office and bunk area that can include storage drawers, a countertop, a refrigerator, a microwave oven, wall-hung storage cabinets, water coolers, a generator cabinet for storage of a diesel-fired portable generator, and telecommunications ports, connections and equipment. Pop-out escape windows are located adjacent each flip up bunk to provide quick exit when necessary from the mobile sleeping unit.

The invention discloses an airlift intermittent internal recycling, de-nitration and dephosphorization sewage treatment technology and a device thereof; the sewage treatment technology comprises the steps: a biochemical tank is divided into an aeration area and a non-aeration area by a deflector; an aeration system is arranged at the bottom of the aeration area and internally provided with stuffing materials and membrane modules; the non-aeration area is internally provided with stuffing materials, and an inlet water pipe and a back-flush system are respectively arranged in the middle and the bottom of the non-aeration area; a mud guiding slope is arranged at the bottom of the non-aeration area, and a mud pipe is arranged at the bottom of the mud guiding slope; the running mode of intermittent water inflow and continuous water outflow is adopted, so that the liquid level of a reactor always changes between high liquid level and low liquid level, thus realizing that mixed solution can be periodically exchanged between the aeration area and the non-aeration area, and leading the aeration area to keep aerobic environment all the time so as to carry out aerobic nitrification reaction; the non-aeration area is in the alternating environment of anaerobic and anoxia so that anaerobic phosphorus release is carried out when no mixed liquid is cycling and that denitrifying phosphorus removal is carried out when the mixed liquid is cycling; and biological membranes in the non-aeration area carries out back washing regularly and excess sludge is discharged regularly from a mud pipe.

An airlift deep-water oxidizing ditch for treating sewage features that the oxidizing ditch is divided into symmertrical two parts by a partition to form two aerating regions, each aerating region has the barrier to form labyrinthine channel and the air inlet pipe as aerating device, and multi-segment aeration is used for treating the sewage alternatively in anaerobic, anoxic and aerobic regions.

The present invention provides one method of culturing Northern Cordyceps in a airlift bioreactor in large scale and separating and extracting Cordyceps extract. Seed for fermentation is cultured in MS culture medium and then transferred to 20 L bioreactor for large scale culture. The culture liquid in the bioreactor is then separated and purified to obtain product with Cordyceps extract content up to 46.25 % and purity of 99 %. The process of the present invention has low production cost and no environmental pollution.

The invention discloses a preparation method for a Szechuan pickled tuber vegetable fermentation composite microbial agent. The microbial agent comprises microbe powder 1, microbe powder 2 and microbe powder 3; the microbe powder 1 is prepared by inoculating 10L of Bacillus coagulans CICC 10144 strain culture solution in a logarithmic metaphase into a 1,000L airlift fermentor for high-density culture; the microbe powder 2 is prepared by inoculating 10L of Leuconostoc mesenteroides CGMCC 1.20 strain culture solution in a logarithmic metaphase into a 1,000L fermentor for culture; the microbe powder 3 is prepared by inoculating 5L of Lactobacillus plantarum CICC 6067 culture solution, 5L of Lactobacillus brevis CICC 6042 culture solution and 5L of Pediococcus acidilactici CGMCC 1.4 culture solution in a logarithmic metaphase into a 1,000L fermentor for co-culture; and the three kinds of microbe powder are mixed in a ratio of 2:5:5 and the mixture is subjected to vacuum packaging to form the Szechuan pickled tuber vegetable fermentation composite microbial agent. The problem that a microbial agent for producing Szechuan pickled vegetables at present is lacked is solved, and productioncontrollability and standard operation for industrially producing the Szechuan pickled vegetables are realized.

The invention discloses a method for high-efficiency culture of microalgae, which comprises the following contents: introducing a gas containing CO2 into an illumination airlift bioreactor which contains microalgae and a microalga culture medium to realize airlift, supplying CO2 and resolving O2, wherein the gas containing CO2 is from tail gas of microorganism fermentation, and the tail gas is introduced into the illumination airlift bioreactor after passing through a conveying pretreatment device. Compared with the prior art, the method disclosed by the invention has the advantages of improving the fat accumulation capacity of the microalgae in a microalga culture process, improving utilization rate of CO2, improving O2 resolution capacity, simplifying the culture device and the like.

A method and a computer program product performs a backwash process, which facilitates a reduction in a reject rate associated with a water treatment tank. A determination is made as to whether or not the water treatment tank is in need of a backwash process, and if so, the following functions are performed. An upper burst solenoid is operated to start an airlift flow in a first airlift path at a first position and at a first point in time, at a bottom portion of the water treatment tank. A lower burst solenoid is operated to start an airlift flow in a second airlift path at a second position and at a second point in time, at a bottom portion of the water treatment tank, the second position being below the first position and the second point in time being after the first point in time. The airlift flow in the first and second airlift paths enables suitable water flow within the water treatment tank.