189results about How to "Strong stirring" patented technology

It is a method for preparation and the special device of nanocrystalline ingotting from metallic fondant treated jointly by magnetic field and supersonic wave, solving the present technique problem of complex device, high cost, and difficulty to prepare large-scale nanometer material and so on. The invented method is as the following steps: melting and heating the matched raw material, deairing the metallic fuse-elements, pouring rapidly the deaired metallic fuse-elements into preheated crucible, heating upwards the liquidus curve, applying electromagnetic mixing and ultrasonic vibration, chilling until it freezes totally, then the block-shaped nanocrystalline ingotting being prepared; the special device that applied joint treatment of electromagnetic mixing and ultrasonic vibration having a holding furnace, which is equipped with a crucible, the special being characterized in that outboard of the holding furnace is equipped with magnetic field generator, over the crucible there is a ultrasonic transducer, and bottom of the crucible is equipped with a chiller.

The invention discloses a bifocus laser and InFocus arc hybrid welding method, and relates to a welding method. The method includes the steps that (1) a to-be-welded workpiece is polished or washed; (2) the spot diameter is set to range from 0.1 mm to 0.5 mm, and the defocusing amount ranges from -3 mm to +3 mm; (3) welding parameters are set, wherein the arc current ranges from 50 A to 900 A, an included angle formed between a welding gun and the vertical direction ranges from 25 degrees to 55 degrees, the welding speed ranges from 100 mm/min to 1000 mm/min, the wire feeding speed ranges from 100 mm/min to 600 mm/min, the protection gas is inert gas, and the flow of the protection gas ranges from 15 L/min to 30 L/min; and (4) a switch is started, and laser-InFocus arc welding is carried out. According to bifocus lasers and InFocus, as the InFocus arc fusion depth is larger, and a key hole can be formed through welding, when a medium-thickness plate is welded, the lasers can directly act on the bottom of the key hole generated by the InFocus arc, and the fusion depth is continuously increased.

The invention discloses a machining method and device for preparing a micro-nano two-dimensional structure on the surface of a workpiece, and belongs to the field of special machining. In the machining process, a laser ablation and electrochemical deposition coupling method is adopted, a laser beam is focused on the surface of a workpiece substrate, the area and path of laser ablation are controlled through a numerical control system, and a micron-grade structure is machined on the surface of the workpiece substrate; and a tool anode keeps being aligned with the ablation area while laser ablation is conducted, and then a nano structure is deposited on the micron-grade structure in the area of the workpiece substrate. In order to restrain an anodic electric field in a top end area of an electrode to the maximum limit, the tool anode penetrates into an insulated glass pipe to achieve side wall insulating. In addition, the temperature of a solution in an irradiation area is increased through the thermal-mechanical effect of laser light, and meanwhile the strong stirring effect is generated to accelerate circular flow updating of deposition liquid and promote quick and efficient growthof the nano structure. The machining method and device are suitable for efficient machining and manufacturing of the micro-nano two-dimensional structure on the surface of a part.

The invention relates to a technique for repairing a hardened gear, specifically disclosing a method for repairing a hardened gear, which can be applied to industries such as a cement plant, a steel mill, a missile unit, chemical industry, railway, petroleum, mine, a power plant, a sintering plant, a pelletizing plant, a steel rolling mill, a fertilizer plant and the like. The method is capable of solving repair of a fault thickness within a range of 1-300 mm in a cladding manner by employing different materials for a joint layer, a transition layer, a work layer and a processing layer in this order. Therefore, with the method, the hardened gear can be quickly repaired, so that the economic loss caused by the damage of the hardened gear is minimized.

The invention provides a solid-liquid mixing device and a mixing method using the same. The solid-liquid mixing device comprises a liquid distributing module, a powder dispersing module, a solid-liquid mixing module and a discharging module. The liquid distributing module conveys to-be-mixed liquid to the mixing module. The powder dispersing module is used for dispersing and/or smashing to-be-mixed powder and making the powder enter the solid-liquid mixing module. The to-be-mixed liquid and the to-be-mixed powder are mixed and rapidly rotate in the solid-liquid mixing module and then discharged out of the discharging module. In the powder dispersing module, the to-be-mixed powder makes contact with the to-be-mixed liquid at a specific tilt angle for preliminary rapid moisturizing after being preliminarily dispersed, spiral feeding is adopted without the control of an independent valve, and the higher dispersing capacity is realized. In the mixing module, by means of a rapid rotating mixer, the moisturizing process of the powder and the liquid is accelerated; in the discharging module, slurry with high viscosity can be discharged, and meanwhile vacuum is generated.

A technology for smelting the refractory Fe-base alloy includes such steps as primary smelting in ordinary electric arc furnace by return oxygen blowing method and smelting the qualified refractory Fe-base alloy in AOD furnace. Said second step includes blowing the mixture of argon gas and O2 in ratio of 4:1 for decarbonizing, heating, blowing the mixture of argon gas and O2 in ratio of 1:1 when C content is 0.1%, sampling and analyzing, regulating contents of its components, blowing argon gas when C content is 0.03%, adding prereducing slags, prereducing, sampling and analyzing, adding reducing slags, blowing argon for dissolving slags, blowing argon for 3 min, adding Ti in ladle, tapping, and casting rod electrodes.

The invention discloses a single-shaft mortar and high-viscosity fluid stirrer for an axial turbulent flow pattern multi-wire cutting machine, comprising a stirring shaft, a stirring assembly and a driving mechanism, wherein the stirring assembly comprises impellers and short flow diversion tubes, the impellers are used for driving a material to move up or down in an axial and spiral mode along the inner wall of a pot body of a stirring pot, the short flow diversion tubes are used for restricting the material flow direction to an axial movement along the axis of the stirring shaft when the material moves up or down in the axial and spiral mode, the impellers and the short flow division tubes are assembled into the stirring assembly which drives the material needed to be mixed and stirred to do an axial turbulent flow motion during stirring, the impellers are coaxially installed at the bottom end of the stirring shaft, the short flow division tubes are coaxially and fixedly sleeved at the outer sides of the impellers, and the stirring speed of the stirring shaft is 600-1500rmp. The single-shaft mortar and high-viscosity fluid stirrer has the advantages of simplicity in structure, high stirring capacity, small shearing force, high dispersing power and high effect, and can be used for solving the problem that silicon carbide is broken due to the shearing force during the high-speed stirring of various traditional stirrers. Moreover, a stuck phenomenon is difficult to generate.

The invention relates to a tin-smelting process, in particular to a method for tin smelting by combining a DC electric furnace and a fuming furnace and for comprehensively recycling iron. The steps of the invention are as follows: reducing agent is added according to the components of tin concentrate, and then, the mixture is put in the DC electric furnace for reduction and smelting to generate metallic tin; and vulcanizing agent and slagging flux are added to liquid slag according to components of the liquid slag, and then, the mixture is put in the fuming furnace to be vulcanized to volatilize the tin in the slag; meanwhile, the mixture is recycled in the form of tin oxide fume; the fumed slag is put in the DC electric furnace in the liquid state, and then, the reducing agent and the flux are added to the fumed slag to be smelted to generate pig iron; meanwhile, the residual sulphur contained in the slag is utilized to continually volatilize the residual tin, and the water-quenched slag can be used as the raw material for building. The method is suitable for processing various tin-containing materials; compared with the traditional tin-smelting method, the tin-smelting method provided by the invention has the advantages of less investment and high tin recovery rate and can comprehensively recycle iron and other valuable metals.

The invention relates to a roll-type electromagnetic stirrer for continuously casting a plate blank, which comprises components such as coil windings, an iron core and the like, and is characterized in that the iron core is designed into a columnar elongated iron core with teeth, and tooth shaped parts protruded on a column are magnetic poles; the coil windings are arranged among the magnetic poles of the iron core at intervals; the peripheries of the iron core and the coil windings are provided with squirrel-cage components made of non-magnetic materials, wherein a stirrer body consisting of the iron core, the coil windings and the squirrel-cage components has a still structure; the stirrer body is arranged in a fully-closed rotating carrier roller; and a cooling water passage for cooling coils is arranged between the stirrer body and the rotating carrier roller. The rotating carrier roller is made of non-magnetic stainless steel with high temperature resistance and high strength, and a shell is provided with a spiral chute which is convenient for water flowing and heat dissipation. Because the formed copper squirrel-cage components cannot rotate, the current of the windings of the stirrer is increased under the same voltage; and relatively, the power for generating the same current is reduced, so the stirrer is easy to generate stronger stirring force.

The invention relates to the technical field of reaction stills and discloses an easy cooling type reaction still for producing sodium hypochlorite. The easy cooling type reaction still comprises a still body, wherein water passing coiled pipes are fixedly arranged on the outer side of the still body; the upper end of the still body is symmetrically provided with two through holes; in addition, two stirring rods are rotationally connected to the inner parts of the through holes; a plurality of stirring blades are fixedly connected to the rod walls, positioned in the still body, of the stirringrods; the upper ends of the stirring rods extend out of the still body and are fixedly connected with driven gears; a motor is fixedly connected to the upper end of the still body; a driving gear meshed with the driven gears is fixedly connected to an output shaft at the upper end of the motor; a damping box is arranged below the still body. The easy cooling type reaction still disclosed by the invention improves the stirring efficiency and can perform multiple buffer damping on reaction degree.

The invention relates to a mixing and stirring conveyor for bunker coal and a coal saving additive, including a housing provided with a supporting seat and a discharge opening arranged on the housing; the housing is a transversely arranged slot body; the cross section of the slot body is in a 'W' shape and the bottom part is a double-circle arc; a main shaft and a vice shaft which are mutually parallel are arranged in the slot body along the length direction of the slot body; the ends of the two shafts are connected with a gear; the two gears are engaged; a plurality of vanes are arranged on the main shaft and the vice shaft according to a spiral line; the twisting direction of the two spiral lines are opposite; the vanes on the main shaft and the outer edges of the vanes on the vice shaft have a coincidence part H along the coaxial direction; the main shaft is connected with a reducer which is arranged at one end of the slot body and connected with a motor; the discharge opening is arranged at the bottom part of the slot body and is close to the end location of the slot body. The conveyor can carry out stirring and conveying simultaneously and has a high stirring capacity. The coal mixed with the coal saving additive can be continuously conveyed without changing the original coal conveying flows of a large coal-using unit, thus not only improving coal saving performance, but also ensuring the normal production of the coal-using unit.

The invention discloses a chromium bronze alloy material and a preparation method thereof. The chromium bronze alloy material consists of chromium, tin, titanium, 0.006 to 0.012 percent of rare earth and 98.518 to 99.394 percent of copper. The preparation method for the chromium bronze alloy material comprises the manufacturing steps of batching, smelting, casting, extruding, stretching, straightening and finished product inspection and detection. Through the chromium bronze alloy material and the preparation method thereof, the prepared chromium bronze alloy material has good elastic recovery capability and smaller grain size; and because of the adoption of an advanced process method in the process, the quality of the chromium bronze alloy material is greatly improved, and meanwhile the service life of processing equipment is prolonged.

The invention discloses a long nozzle argon blowing refining device capable of effectively removing tundish inclusions. The device is composed of a long nozzle, a swirling chamber and a swirling chamber outlet. An annular groove is reserved in the position, close to the top, of the inner wall of the long nozzle. An annular dispersion gas inlet chamber is arranged in the annular groove and connected with an argon conveying system through gas inlet holes formed in the wall of the long nozzle. The lower portion of the long nozzle is connected with the swirling chamber in the tangential direction.According to an argon blowing refining method adopting the device, the inclusions are removed by means of the adhering effect of dispersed phase argon bubbles, and the problems that a traditional argon blowing device is large in bubble size, the time of standing in molten steel is too short, the casting powder surface is prone to being broken, and consequentially, secondary oxidation and heat loss of the molten steel are caused are solved; and in addition, long nozzle argon blowing prevents scaffolding blockage of the long nozzle to a certain extent, meanwhile, gravitational potential energyof the molten steel in the swirling chamber is converted into rotational kinetic energy, the inclusions are promoted to collide, grow up and float upwards before being removed, and accordingly, the cleanliness of the molten steel is improved.

The invention discloses a twin exhaust gas purifying tower, which comprises towers I and II and tower circulating pools I and II, wherein the towers I and II are paratactic and serially connected with each other; the circulating pools of the tower I and II are corresponding to the lower parts of the towers I and II; a liquid gathering hopper, a liquid-guiding ring, a nozzle, a spiral flow plate and a top liquid baffle ring are arranged in the tower I from bottom to top; an exhaust gas inlet and an air oxidation device are arranged on the tower I circulating pool; a tower II liquid distributing pipe, a conical cup atomizing layer and a multi-ring whirlwind demister are arranged on the tower II from top to bottom; a clean gas outlet is arranged on the tower II; spacing rings are arranged onthe circulating pools on the lower parts of the towers I and II; circulating pumps are arranged in the circulating pools of the tower I and II; lifting pumps and dewatering pumps are arranged at bottoms of the towers I and II; and a medium conveying pipe is arranged on the upper part of the tower II. By using the twin exhaust gas purifying tower, a gas/liquid mass transfer area is increased, a gas/liquid contact area is updated by repeatedly cutting, the purifying efficiency is high, the consumption of circulating kinetic energy is reduced, the flow speed of idle tower is increased, the reaction of absorbing medium is more complete, the utilization ratio is higher, solid content in cleaning solution in the towers is reduced, the abrasions of the circulating pumps and the nozzle are reduced, the service life is prolonged, and the maintenance is more convenient. The twin exhaust gas purifying tower is mainly used for cleaning, absorbing and purifying the exhaust gas.

The invention discloses a household eggbeater with a function of automatic cleaning. The household eggbeater comprises an eggbeater body, the top of the eggbeater body is welded to an eggbeater head,the left side of the machine head is provided with a cooling fan, a gear-change lever is arranged on the right side of a first switch, a rotary shaft is installed on the lower portion of the right side of the machine head, and the bottom of a second connection head is welded to a fixing base. Protrusion blocks are welded to the bottoms of stirring rods, installation bases are fixedly arranged in the middles of the front surface and the rear surface of the machine body through bolts respectively, clamps are clamped to the right sides of springs, a base is welded to the bottom of the machine body, and a stirring barrel is arranged on the outer side bellow the stirring rods. The twelve stirring rods of the household eggbeater with the function of automatic cleaning are each set to be of an arc-shaped structure, the stirring rods and the protrusion blocks are all made of silica gel, the silica gel is soft so that the inner wall of the stirring barrel cannot be scratched, the protrusion blocks are each set to be of a cuboid structure with an arc-shaped corner, the stressed area is increased, the stirring strength is increased, and the stirring efficiency is improved.

The invention discloses an animal and plant tissue homogenate dispersion machine and a working head thereof, and is applicable for animal and plant tissue homogenization and dispersion and preparation of a suspending agent and an emulsion. The working head of the animal and plant tissue homogenate dispersion machine comprises a rotor and a stator, wherein the rotor comprises a cross arm and stirring arms extending at two ends of the cross arm in parallel; the stator comprises a base part and a plurality of sawteeth annularly distributed from one side of the base part, the sawteeth are provided with inclined surfaces on two sides in circumferential direction, the sawteeth form a stator cavity, the rotor is arranged inside the stator cavity, and the stirring arms are positioned on the inner sides of the sawteeth.

The invention discloses a mixing agitator for materials and relates to the technical field of material mixers. A blade is connected at the lower end of an agitating shaft in a barrel; the agitating shaft is connected with a motor arranged outside the barrel body through a transmission speed-reducing mechanism; a feed port is formed at the upper end of the barrel body; a suction tube is arranged inside the barrel body; the upper end of the suction tube is connected with an inlet end of a water pump arranged outside the barrel body; two vertical guide plates are symmetrically and fixedly connected to an inner wall of the barrel body; the lower ends of the vertical guide plates are positioned below the horizontal plane of the blade; and an inlet end of the suction tube is arranged between the lower ends of the vertical guide plates and the horizontal plane of the blade. Slurry can generate omega-shaped and circumferential convective motion in the barrel body, fluid circumferentially shears convective circulation up and down, and the slurry is uniformly dispersed. The mixing agitator for materials has the characteristics of low energy consumption, uniform dispersion, strong agitation, long service life of an agitating wheel, no solid-phase settlement and the like, capacity of improving mixing uniformity of scale removing sand and water, and contribution to scale removal for steel pipes.