3292results about "Mixers" patented technology

The invention relates to the technical field of screening, and discloses an iron ore powder and antifreezing agent mixed screening device which comprises a rack, and the surface where the top of the rack is located is inclined; a first bearing seat is mounted on the rack, a roller with a rubber wheel surface is rotationally connected to the first bearing seat, a universal coupling is connected to the shaft end of the roller, a shaft rod is connected to the other end of the universal coupling, a speed reducer arranged on a second supporting seat is connected to the free end of the shaft rod, and the second supporting seat is connected with the rack; the speed reducer is driven by a first motor arranged on the rack, and the first motor and the speed reducer transmit power through belt transmission; a drum screen assembly used for improving the mixing uniformity of the iron ore powder and the anti-freezing agent is connected to the rolling wheel in a rolling mode, and mixed materials are discharged from screen holes of the drum screen assembly. Mixing, screening, conveying and cleaning are integrated, mixing uniformity is high, screening efficiency is excellent, operation and maintenance are convenient and fast, and the requirement for mixing and screening of iron ore powder and an anti-freezing agent is met.

The invention relates to the technical field of agricultural irrigation, and discloses an intelligent agricultural water-saving irrigation and fertilization device which comprises an irrigation box, sliding rails, an irrigation assembly, a self-walking stirring assembly, a scraping and blowing assembly and a cylindrical filter part, the irrigation box is arranged on the two sliding rails, the cylindrical filter part is arranged in the irrigation box, the irrigation assembly is installed on one side of the irrigation box, and the self-walking stirring assembly is installed on the other side of the irrigation box. The spraying device is used for spraying water and fertilizer to crops; the self-walking stirring assembly comprises a rolling wheel, a rod type stirring piece and a driving piece. Water-soluble fertilizer water beads on the surfaces of seedlings are scraped and blown through the scraping and blowing assembly, water-soluble fertilizer attached to the surfaces of leaves and stalks of the seedlings can be effectively removed and shaken off to the bottoms of the seedlings, and therefore waste of the water-soluble fertilizer is reduced, meanwhile, the water-soluble fertilizer can directly act on root systems of the seedlings and is fully absorbed by crops, and the water-soluble fertilizer can be applied to the roots of the seedlings. The utilization rate of the water-soluble fertilizer is increased, and the problem of volatilization of nutritional ingredients caused by strong quick-acting property and short lasting period of the water-soluble fertilizer is reduced.

The utility model discloses a polyester reverse esterification kettle on-line adding device which comprises a first esterification kettle and a second esterification kettle, a batching pipeline is arranged between the first esterification kettle and the second esterification kettle, and a three-monomer on-line injection system is arranged on one side of the batching pipeline. A second static mixer, a dynamic mixer and a pneumatic valve are sequentially arranged on the batching pipeline between the three-monomer on-line injection system and the second esterification kettle, and materials prepared by the three-monomer preparation system are injected into a connecting pipeline through the three-monomer on-line injection system; and then the mixture enters the second static mixer and the dynamic mixer to be mixed and then is injected into the second esterification kettle through the pneumatic valve. The transformation from production of extinction products to production of cationic products can be quickly realized in the five-kettle process, so that the productivity and the quality of the products are ensured, and benefits are created for enterprises to be maximized.

The invention discloses a wastewater degradation and recovery device for white spirit production, and particularly relates to the technical field of wastewater degradation, the wastewater degradation and recovery device comprises a treatment tank and an impurity storage box arranged on one side of the surface of the treatment tank and used for collecting impurities after wastewater treatment, and the other side of the treatment tank is further provided with an input and output assembly; sealing plates for isolating wastewater are arranged on the upper side and the lower side of an inner cavity of the treatment tank respectively, a sealing column is arranged on the opposite surfaces of the two sealing plates, a liquid storage tank is arranged on one side of the sealing plate located on the upper portion, and an air injection stirring assembly is arranged at the bottom of the sealing column. According to the wastewater degradation and recovery device for white spirit production, the mode that large bubbles are directly injected and scattered by a rotary stirring rod to form small bubbles is achieved through the arranged air injection stirring assembly, and meanwhile the injection mechanism is matched for synchronous operation, so that a flocculating agent is rapidly dispersed by means of bubble kinetic energy and the stirring effect, and the flocculation reaction is accelerated; the pollutants can be more quickly coagulated into large-particle flocs, and the wastewater purification efficiency is improved.

A foamed liquid dispensing system includes a container for receiving a liquid to be dispensed connectable to, and removable from, a gas charging unit. The gas charging unit includes a gas compressor, gas pressure sensing means, a control unit and a user interface. The user interface permits a user to input a desired final gas pressure from a minimum value to a maximum value in discrete steps. The control unit instructs the gas compressor to charge the container with gas to the desired final pressure. The gas pressure is continuously monitored and the flow of gas into the container is stopped once the desired final gas pressure has been reached. The user interface displays the gas pressure in the container as the charging cycle proceeds. Once charged with gas and removed from the gas charging unit, the container substantially retains the final desired gas pressure until the liquid is dispensed.

To provide methods for selectively combining discrete entities including cells, reagents, drugs, hydrogels, extracellular matrices, beads, particles, biological materials, media, or a combination thereof.SOLUTION: The method comprises sorting a plurality of discrete entities and trapping two or more discrete entities for a time sufficient for the two or more discrete entities to combine to form a combined discrete entity. In certain aspects, the method comprises making the plurality of discrete entities. In certain aspects, the method comprises detecting or analyzing the discrete entities, for example, via optical detection. In certain aspects, the method comprises manipulating or analyzing the combined discrete entity or a component therein, for example, imaging, sequencing, culturing, for example, three-dimensional culturing, and measuring cell-cell interactions.SELECTED DRAWING: None

The invention belongs to the technical field of purification stations, and particularly discloses an automatic chemical feeding control device for a purification station, which comprises a concentrated chemical tank, a PLC (programmable logic controller), a water tank and a factory, the concentrated chemical tank is provided with a concentrated chemical pipe, the concentrated chemical pipe is provided with a diluted chemical tank, the diluted chemical tank is provided with a water pipe, the water pipe is communicated with the water tank, the diluted chemical tank is provided with a diluted chemical pipe, the diluted chemical pipe is provided with a reaction tank, and the reaction tank is provided with a sewage pipe. The reaction tank is provided with a water outlet pipe, the water outlet pipe is communicated with the plant, the thick pesticide pipe is provided with a pesticide spraying pump, the thin pesticide tank is provided with a liquid level meter, the thick pesticide pipe, the thin pesticide pipe and the water pipe are all provided with electric valves, the thin pesticide pipe is provided with four metering pumps and flow meters, and the sewage pipe and the water outlet pipe are both provided with turbidity meters; through cooperation of the PLC and the electrically operated valve, the proportion of concentrated chemicals and water and the dosage of added chemicals during sewage treatment are flexibly controlled, personal errors are reduced, and the stirring speed is increased through aeration stirring of the chemical liquid through the vacuum pump, so that the problems of personal errors and low stirring speed due to manual chemical adding of an existing purification station are solved.

The invention relates to the field of water pollution abatement, in particular to an underwater micro-nano bubble generator and a using method thereof.The underwater micro-nano bubble generator comprises a bubble cutting pipe, a bubble cutting generating device is arranged in the middle of the bubble cutting pipe, and an erecting fixing plate is arranged at the front end of the bubble cutting pipe; a plurality of first venturi tubes are arranged on the erected fixing plate, each first venturi tube comprises a first liquid inlet section, a first compression section and a first expansion section, a water passing pipe is connected between the first expansion section and the bubble cutting tube, and an air inlet which is the same as the interior of the first venturi tube is fixedly formed in the first venturi tube; and a second Venturi tube is fixedly mounted at the rear end of the bubble cutting tube, so that the problems that a micro-nano bubble generator in the prior art is relatively high in cost, water and gas cannot be preliminarily mixed before bubble cutting, and the damage resistance is poor can be solved.

A method for processing a sample in a container includes introducing the sample to the container. A cap is applied to the container. The cap contains a plurality of beads. The plurality of beads is mixed with the sample. The plurality of beads is separated from the sample. Subsequent to removing the plurality of beads, a further process is initiated.

The present invention discloses a super-aeration flotation system and its implementation method, belonging to the technical field of wet-process phosphoric acid production. The system comprises a reaction tank, an inclined guide plate arranged on the inner wall of the reaction tank, a dished trough arranged at the bottom of the reaction tank and arranged in a ring shape around its center, a central island formed by a protrusion of the inner ring portion of the dished trough at the bottom of the reaction tank, an aeration mechanism arranged on the central island and connected to the outside through a pipeline, a transmission mechanism installed above the reaction tank, a central transmission rod arranged along the axis of the reaction tank and connected to the output end of the transmission mechanism, a dynamic settler arranged at an upper position in the reaction tank and connected to the central transmission rod, and an overflow port matched with the dynamic settler. By integrating the inclined guide plate, the dished aeration structure and the dynamic settler in the reaction tank, the present invention significantly enhances the super-aeration uniformity, foam separation ability, phosphoric acid purification and liquid vortex intensity in the wet-process phosphoric acid production process, thereby improving reaction efficiency and product quality.

The invention discloses a horizontal sludge dryer which comprises a rack, a first drying cylinder is arranged on the rack in an obliquely downward mode through a supporting piece, a sludge feeding mechanism is arranged in the upper end of the first drying cylinder, and a cyclone conveying mechanism in the first drying cylinder is connected with the air outlet end provided with a screw air compressor through a connecting pipe. A crushing mechanism is arranged at the discharging end of the sludge feeding mechanism, a second drying cylinder is movably connected to the discharging end of the first drying cylinder, a roundabout conveying mechanism is arranged in the second drying cylinder, a hot air inlet pipe is arranged in the lowest end of the second drying cylinder, and a discharging control mechanism is arranged in the lower end of the second drying cylinder. An air outlet is formed in the lower end of the first drying cylinder and connected with a sludge feeding mechanism through an air return pipe, and a first rotation driving mechanism is arranged on the rack. The sludge drying device is simple in structure, sludge can be effectively crushed, heat and mass transfer is enhanced, the drying path is prolonged, and waste heat can be effectively recycled.

The invention relates to the field of enhanced intrinsic safety in a gas-liquid phase mixing process, and discloses a gas-liquid mixing device and a gas-liquid mixing vaporization method. The device comprises a shell, a Venturi gas-phase turbulent mixing section, a liquid-phase atomizing mixing section and a static mixing section are sequentially arranged in the shell in the flowing direction of material flow, the Venturi gas-phase turbulent mixing section comprises a reducing structure and an expanding structure, a liquid inlet component is arranged at the position, close to the reducing structure, of the expanding structure, and the static mixing section is connected with the liquid inlet component. The liquid phase atomization mixing section is provided with a membrane tube base body, the membrane tube base body is provided with a plurality of inner holes in the axial direction, the surfaces of the inner holes are coated with nanometer materials, and the static mixing section is provided with filler. According to the device, the liquid-phase oxidizing agent and the gas-phase oxidizing agent are subjected to multi-stage mixing vaporization, the atomization degree of the liquid phase is increased, the uniformity degree of the obtained mixed gas phase is improved, meanwhile, the device can be quenched after burning explosion by coupling a porous membrane pipe and filler, and the burning explosion risk in the mixing vaporization process is reduced.

A high-throughput automated chemical synthesis workstation, relating to the technical field of chemical synthesis. The workstation comprises a base. The base is detachably provided with a negative pressure suction filter, a magnetic stirring reactor, a high-throughput chemical reaction module, a pipette tip box, a cover plate, and a liquid storage tank, wherein the negative pressure suction filter and the magnetic stirring reactor can be replaced with other testing instruments; a screw is lap-jointed on the cover plate; a moving device is also mounted on the base, and a tightening assembly, a gripper assembly, and a pipetting assembly are mounted on the moving device; and pipetting is performed by the pipetting assembly, the gripper assembly drives the cover plate to move to the high-throughput chemical reaction module for sealing, and after tightening is performed by the tightening assembly, the gripper assembly drives the sealed module to move to the reactor, thereby achieving real-time observation during remote operation.

The invention discloses an ingredient mixing device for CIPP-ultraviolet light curing repair material production, and particularly relates to the technical field of CIPP-ultraviolet light curing repair material.The ingredient mixing device comprises a shell, supporting frames are fixedly connected to the four corners of the lower end of the shell, and a stirring mechanism is arranged on the lower portion of the inner surface of the shell; the inner surfaces of the two circular cavities are jointly provided with a pretreatment assembly, and a premixing assembly is arranged above the stirring mechanism. According to the ingredient mixing device for production of the CIPP-ultraviolet curing repair material, the pretreatment assembly is arranged, a liquid resin material is subjected to layered swinging, scraping, runner conveying and converging mixing, and the problem that local aggregation or layered precipitation is prone to occurring due to viscosity and density differences caused by different types of liquid resin is solved; different types of liquid resins can firstly form independent thin layers, and then are gradually contacted and fused along a flowing path, so that full shearing and permeation among the liquid resins are realized, and the mixing uniformity of the liquid resins is improved.

The invention discloses a continuous reaction device and method for producing 2-amino-4-methylbenzothiazole, and belongs to the technical field of compound production. The invention relates to a continuous reaction device for producing 2-amino-4-methylbenzothiazole, which comprises a first-stage reaction kettle and further comprises a stirring mechanism arranged in the first-stage reaction kettle and used for stirring chlorine and a mixed solution in the first-stage reaction kettle; the driving mechanism is arranged at the top of the first-stage reaction kettle and is used for driving the stirring mechanism to perform stirring action in the first-stage reaction kettle; the chlorine injection mechanism is connected with the stirring mechanism; the air exhaust mechanism is arranged at the top of the first-stage reaction kettle and is connected with the driving mechanism; the multistage reaction kettles are adopted for continuous operation to eliminate downtime, so that the problem of low production efficiency caused by repeated heating and cooling due to the use of intermittent reaction kettles in the traditional process is solved, the chlorine utilization rate is improved, and the production and processing cost is effectively reduced.

The invention belongs to the technical field of food sampling, and particularly relates to a food crushing homogenizer and a control method thereof. The invention provides a food crushing homogenizer. The food crushing homogenizer comprises a base; the plurality of groups of first crushing and homogenizing components are mounted on the base, each group of first crushing and homogenizing component comprises a first driver, a first cutter and a first container, the output end of the first driver is connected with the first cutter, and the first cutter is positioned in the container; the second crushing and homogenizing assemblies are installed on the base, each second crushing and homogenizing assembly comprises a second cutter and a second container, the output end of the second motor is connected with the second cutter, and the second cutter is located in the second container; the capacity of the first container is greater than that of the second homogenizing container; and the control device is electrically connected with each first crushing and homogenizing assembly and each second homogenizing assembly. The food crushing and homogenizing device can remarkably improve the food crushing and homogenizing efficiency.

The invention discloses a powder multidirectional pneumatic conveying channel structure based on mixed material processing, and relates to the technical field of pneumatic conveying, the powder multidirectional pneumatic conveying channel structure specifically comprises a buffer mixing cylinder, the bottom of the buffer mixing cylinder is provided with a sealing ball valve, the bottom of the sealing ball valve is fixedly communicated with a first flow channel through a flange, and one end of the first flow channel is fixedly connected with a material distributing cylinder; a runner II is fixedly communicated with one side of the material distributing barrel, and a feeding pipe is also communicated with one side of the material distributing barrel; through two core designs of mechanical linkage self-adaptive regulation and intelligent on-demand energy supply, the energy efficiency ratio and the operation flexibility of the system are remarkably improved while the problem of powder conveying layering is solved, an efficient and reliable solution is provided for long-distance and multi-component powder pneumatic conveying, and compared with a static mixer, the energy efficiency of the system is greatly improved. The problem of separation caused by material characteristic difference is solved, and energy consumption increase caused by a multi-section mixer is avoided.

The utility model provides a building type crushing and filling system which comprises a crushing building which is arranged to crush materials and convey the materials which are crushed to have preset granularity to a finished product warehouse building; the finished product warehouse building is provided with a finished product tank used for receiving the materials with the preset granularity, and a discharging opening of the finished product tank is communicated with a filling device; and the filling device is arranged to mix the material from the finished product tank with the mixed additive and then convey the mixed material to a goaf or an accident pool. According to the utility model, the layout of each device is more reasonable, and the occupied space is smaller; the integrated full-process continuous operation including material crushing and filling can be realized; and when maintenance and change are needed, assembly can be directly carried out by taking a building as a unit, so that the influence on other equipment is reduced.

The utility model discloses an SCR waste catalyst recovery device in the field of SCR waste catalyst recovery, which comprises a bottom plate, support rods and a reaction box, the support rods are fixedly connected to the edge positions of four corners of the top of the bottom plate, the reaction box is fixedly connected to the top ends of the support rods, a feed pipe is fixedly connected to the front part of the top of the reaction box, and the feed pipe is fixedly connected to the bottom of the bottom plate. According to the recovery device for the SCR waste catalyst, the waste catalyst is damaged, the size is reduced, the reaction area of the waste catalyst and a chemical agent is increased, the reaction rate is increased, meanwhile, a driving bevel gear is driven to rotate through starting of a first motor, the rotating directions of an upper driven bevel gear and a lower driven bevel gear are opposite, and therefore the waste catalyst is recycled. The rotating rod and the hollow pipe rotate in opposite directions, the first stirring rod and the second stirring rod are driven to rotate in opposite directions, reactants are stirred in different directions, a waste catalyst and a chemical agent are fully mixed, full reaction is facilitated, and insufficient reaction is prevented.

The invention discloses high-stability gravure ink and a preparation device thereof, and belongs to the technical field of printing materials, and the ink is prepared from polyurethane acrylate hybrid resin, phthalocyanine blue pigment, nano-zinc oxide dispersion, environment-friendly ester solvent, isopropanol and a plurality of auxiliaries according to a specific weight part ratio. The anti-settling property, the leveling property and the storage stability are excellent. The preparation device comprises an intelligent batching unit, a multi-stage efficient mixing and dispersing unit, a vacuum defoaming and curing unit and an online filtering and filling unit which are sequentially arranged in the material flow direction, and is integrally controlled by a central intelligent control system. According to the device, through the unique coaxial different-direction stirring assembly, ultrasonic-assisted dispersion and full-process automatic control, efficient, uniform and continuous production of printing ink is achieved, and the consistency of product quality and production efficiency are remarkably improved. The problems that traditional gravure ink is poor in stability, the production process is dispersed, and the traditional gravure ink depends on manpower are effectively solved.

The invention discloses a high-flux automatic chemical synthesis workstation, which relates to the technical field of chemical synthesis, and comprises a base, the base is detachably provided with a negative pressure suction filter, a magnetic stirring reactor, a high-flux chemical reaction module, a gun head box, a cover plate and a liquid storage tank, and the negative pressure suction filter and the magnetic stirring reactor can be replaced by other detection instruments. The cover plate is in lap joint with a screw, the base is further provided with a moving device, the moving device is provided with a button assembly, a clamping jaw assembly and a pipetting assembly, the pipetting assembly is used for pipetting, and the clamping jaw assembly drives the cover plate to the high-flux chemical reaction module for sealing. The sealing module is driven to the reactor through the clamping jaw assembly after being fastened through the fastening assembly, and real-time observation can be carried out during remote operation. By means of the technical scheme, it is guaranteed that high-throughput chemical synthesis experiments including pipetting, reaction system sealing, reaction starting, gradient dilution and suction filtration are completed in one work station.

Disclosed are various embodiments of an auger-style treatment tank equipped with instrumentation. In one embodiment, an auger treatment tank includes an auger configured to rotate within treatment liquid in the auger treatment tank. The auger includes an auger shaft and at least one auger flight coupled to and helically disposed about the auger shaft. The auger treatment tank also includes one or more sensors configured to provide data directly or indirectly indicating a torque transmitted to the auger to effect rotation.

The utility model relates to the technical field of microfluidics, and discloses a multi-stage micro-fluidic chip, which at least comprises a first-stage collision fluid channel and a second-stage collision fluid channel, and a mixing channel of the upper-stage fluid channel is arranged as a premixing fluid channel of the lower-stage fluid channel; the first-stage collision fluid channel comprises a first premixed fluid channel and a second premixed fluid channel, a first-stage fluid collision channel is arranged between the first premixed fluid channel and the second premixed fluid channel, and the first-stage fluid collision channel enters the second-stage premixed fluid channel after collision; a second-stage fluid collision channel is arranged between the third premixing fluid channel and the fourth premixing fluid channel, and the second-stage fluid collision channel enters the mixing channel after collision. The multi-stage micro-fluidic chip has the advantages of high mixing efficiency, low shear damage, easiness in integrated packaging and batch manufacturing and the like, and the micro-fluid mixing performance and the system practicability are remarkably improved.

A suspended-type smart painting apparatus for a building wall surface, comprising a support (1), a painting mechanism (2), a suspension and movement mechanism (3), a control mechanism (4), and a paint storage mechanism (5). The support (1) comprises a support main body (11), and an auxiliary support (12). The painting mechanism (2) comprises a support arm (21), a painting spray head (22), and a roller (23). The suspension and movement mechanism (3) comprises a reel (31), a horizontal plate (32), horizontal movement mechanisms (33) arranged at two ends of the horizontal plate (32), and a first motor (34). Each horizontal movement mechanism (33) comprises a roller wheel (331), a second motor (332), and a transmission gear (333). The control mechanism (4) comprises a microcontroller (42), an air pump (43), and a sensor group (41). The paint storage mechanism (5) comprises a storage drum (52), a one-way air valve (51), a stirring rod (53), an electromagnet array (56), and a paint outlet (57). The suspended-type smart painting apparatus for a building wall surface is reasonable in structure, has advantages such as being simple in structure, convenient to use, safe and reliable, and convenient to convey materials, and effectively solves the problem that painting high walls is unsafe.

An efficient multiphase-flow graded-separation, concentration, and purification system for argillaceous sandstone uranium ore includes a hydraulic tossing washing and scattering pretreatment device, a high-frequency linear vibration grading device, a first-stage multiphase-flow swirling grading device, an energy-gathering ultrasonic scrubbing device, a second-stage multiphase-flow swirling grading device, a high-frequency linear vibration dewatering device, an efficient uniform-mixing and activating system and a conditioning and pressing dewatering system. The present disclosure implements intensive mud-sand stripping of crushed argillaceous sandstone uranium ore, fine graded-separation of material, and efficient uniform-mixing and activating and deep efficient dewatering of fine-particle argillaceous material. Finally, four types of core material of coarse sand material, fine sand material, dry tailings residue and a high-concentration uranium ore leaching solution are formed through continuous work. Efficient multiphase-flow graded-separation, concentration and purification of the argillaceous sandstone uranium ore are implemented, and an intensive extraction rate of uranium ore resources is improved.

The invention relates to the technical field of carbon dioxide mineralization and absorption, in particular to a coal-based solid waste whole-process deep mineralization and storage CO2 system and method.The system comprises a pretreatment system, a PH detection system, an ultrasonic generation system and a mineralization reaction system, and the ultrasonic generation system and the PH detection system are both connected with the mineralization reaction system; the method comprises the following steps: S1, feeding a mixture of fly ash and desulfurized gypsum into a ball mill; according to the method, fly ash or a mixture of fly ash and desulfurized gypsum treated by a chemical leaching reaction liquid in physical modes such as ball milling, high-temperature calcination and hydration is sent to a vortex type mineralization reaction device, and surface inerting layers of fly ash and desulfurized gypsum are destroyed by utilizing an ultrasonic cavitation effect in the mineralization reaction process; leaching of alkali metal ions such as calcium and magnesium in the slurry is promoted, and the gas-solid mass transfer efficiency is improved; under the conditions that the CaO content of the fly ash is limited and no additive is added, the carbon dioxide sealing and absorbing capacity of the fly ash is improved to the maximum extent.

The invention discloses a continuous flow production method of high-purity chlorantraniliprole, and belongs to the technical field of chemical synthesis. The method comprises the following steps: simultaneously pumping a mixed solution containing 3-bromo-1-(3-chloro-2-pyridyl)-1H-pyrazole-5-formic acid, a solvent, an acid-binding agent and 2-amino-5-chloro-N, 3-dimethylbenzamide and a catalyst solution into a mixing unit of a continuous flow reactor I to form a reaction mixture flow; the material flow enters a continuous flow reactor I for condensation reaction to obtain a chlorantraniliprole solution; simultaneously pumping the mixed solution and a quenching agent solution into a continuous flow reactor II, and quenching to separate out crystals; and continuously centrifugally separating the quenching liquid containing the crystals, washing and drying to obtain a chlorantraniliprole refined product. According to the present invention, the full continuous flow process is adopted, the reaction unit and the post-treatment unit are included, the material continuously flows, and when the process is stable, the material composition, the temperature and other parameters in the reactor are only related to the reaction position and do not change with time, such that the production process and the product quality stability are ensured.

The invention relates to the technical field of building material preparation, in particular to a preparation device for composite modified asphalt. Comprising a modified material premixing bin, an asphalt feeder and a main reaction system, a modified material feeding port and an asphalt feeding port are formed in the top of the main reaction system, the modified material premixing bin is communicated with the main reaction system through the modified material feeding port, and the asphalt feeder is communicated with the main reaction system through the asphalt feeding port; the main reaction system is of a multi-stage mixing reaction kettle structure and sequentially comprises a first-stage vertical stirring area, a second-stage high-speed shearing area and a third-stage static mixing area, and the interiors of the first-stage vertical stirring area, the second-stage high-speed shearing area and the third-stage static mixing area are communicated with one another; and through continuous design of multi-bin matching and multi-stage mixing, the problems of non-uniform mixing and low product performance of the composite modified asphalt are solved.

The invention belongs to the technical field of functional drinks, and provides oxygen-carrying nano bubble water and a preparation method thereof.The oxygen-carrying nano bubble water comprises water and nano-scale oxygen bubbles dispersed in the water, and the particle size of the nano-scale oxygen bubbles is distributed within the range of 10-200 nm; the content of dissolved oxygen in the water is 25-45 mg / L; the stable suspension time of the nanobubbles in water is not less than 1 week, and the gassing rate is lower than 10%. According to the invention, the solubility and stability of oxygen in water can be improved. By means of an innovative nano bubble technology, a plasma excitation technology, a bubble stability technology and the like, efficient, lasting and stable oxygen supplement can be provided for consumers, the requirements of the market for healthy drinks are met, and further development of an oxygen water technology is promoted.

The utility model provides liquid nitrogen extraction equipment which comprises a containing cavity, a smashing device, a first driving device and a separating device, the containing cavity is provided with a feeding port and a discharging port, blades used for smashing raw materials are arranged on the lower surface of the smashing device, and the first driving device drives the smashing device to rotate and move in the vertical direction. The separating device is arranged below the smashing device and divides the containing cavity into a first cavity communicating with the feeding port and a second cavity communicating with the discharging port. The separating device comprises a first separating plate and a second separating plate, the first separating plate is provided with a first through hole, the second separating plate is provided with a second through hole, the first through hole and the second through hole are arranged in a staggered mode, and the second separating plate can move in the vertical direction to be attached to or away from the first separating plate. According to the liquid nitrogen extraction device, automation of the process of smashing raw materials and transferring the raw materials into the cavity used for soaking the raw materials to extract active ingredients can be achieved, the workload of operators is reduced, and the working efficiency is improved.