912results about How to "increase contact area" patented technology

The invention discloses a blood vessel interventional operation conduit or guide wire control device based on two-point clamping. The blood vessel interventional operation conduit or guide wire control device comprises a main finger assembly, an auxiliary finger assembly, a drive assembly and a conduit or guide wire guiding assembly. Rotary motion of an idler wheel in the main finger assembly can achieve advancing or drawing-back of a conduit or a guide wire. The main finger assembly and the auxiliary finger assembly can achieve forward rotation of the conduit or the guide wire and backward rotation of the conduit or the guide wire through combined motion. When the conduit or the guide wire is installed and clamped, the auxiliary finger assembly can directly move through a hand along the direction of being far away from the main finger assembly, and after grip is loosened, the auxiliary finger assembly returns through the action of tension of a spring on the interior of the auxiliary finger assembly. The drive assembly can drive the main finger assembly and the auxiliary finger assembly to move. The conduit or guide wire guiding assembly is used for achieving guiding of the conduit or the guide wire and rapid installation of a Y valve. According to the blood vessel interventional operation conduit or guide wire control device based on the two-point clamping, advancing and rotation of the conduit or the guide wire can be achieved, workloads of a doctor are reduced, working hours of the doctor in radiation environment are reduced, and motion accuracy of the conduit or the guide wire in blood vessels is improved.

The invention discloses an organic light emitting display device. An auxiliary conductive layer is directly formed on an electrode power line and is exposed out of partial region of the electrode power line; and a second electrode extends to the non-display region and continuously covers the surface, away from the electrode power line, of the auxiliary conductive layer and the exposed surface of the electrode power line. The areas where the second electrode is contacted with the electrode power line and the auxiliary conductive layer are large, the electrode power line thus can easily build a short conductive path via the auxiliary conductive layer, contact resistance between the second electrode and the electrode power line can be effectively reduced, and voltage drop between the electrode power line and the second electrode is reduced. According to the organic light emitting display device manufacturing method disclosed by the invention, the technology is simple, and the manufacturing cost is low.

The invention relates to a control method of generating overheat steam by electric steaming furnace, which comprises a steam generating process and a steam overheating process; the steam generating process comprises an atomizing step that an electric control device controls a water supply device to provide an atomizing device with a water pressure, and the atomizing device sprays out water mists; and a heating step that the electric control device drives heating elements to heat the water mists to generate heated steams; the heating step is continuously carried out in the whole steam generating process; and the steam overheating process comprises an overheating step that the electric control device drives dry burning elements to heat the heated steams to form overheat steams. The atomizing device is used to atomize the water into the water mists, the heating elements directly heat the water mists to form steams, the contact area among the water mists and the heating elements is enlarged, and the steam generating speed is increased, so that cooking efficiency is effectively improved; and the dry burning elements further overheat the steams to form the overheat steams, so that cooking efficiency is further improved.

The invention belongs to a photocell electrode material and discloses a mixed electrode slurry for crystalline silicon solar cells. The mixed electrode slurry is prepared from, by weight, 40-60 parts of silver powder, 5-10 parts of zinc powder, 10-20 parts of silver coated nickel alloy powder, 1-5 parts of a lithium iron phosphate and carbon nanotube composite material, 1-8 parts of glass powder, 0.5-2 parts of a silane coupling agent, 10-15 parts of butyl carbitol acetate, 1-3 parts of zinc naphthenate, 0.1-0.5 part of hydroxymethyl cellulose and 0.25-1 part of hydrogenated castor oil. The invention further discloses a preparation method of the mixed electrode slurry. The mixed electrode slurry prepared by means of the preparation method does not contain lead, completely meets the requirements of environmental protection, is applied to the production of the solar cells and can form a strong attachment force on the surfaces of the solar cells, and the photoelectric conversion efficiency of the cells is high. In addition, the mixed electrode slurry is simple in process and low in cost and thus has a wide application prospect.

The invention discloses a continuous feeding device for an electric arc furnace preheated by flue gases. The device comprises a double-duct conveying trough and a flue gas guiding hood; a carrier plate with a flue gas channel is arranged in the middle part of the double-duct conveying trough; a material circulating duct is arranged above the carrier plate, and a flue gas circulating duct is arranged below the carrier plate; a seal gate matched with the upper opening of the lower end of the material circulating duct is arranged on the flue gas guiding hood; the double-duct conveying trough forms a flue gas diffusion heat exchanging mechanism from bottom to top, contact area between materials and high temperature flue gas is enlarged, the stay time of the flue gas is long, and the material preheating effect is greatly improved; as the double-duct conveying trough is arranged in an inclined way, the feeding point is raised, the trough bevel is large, the waste steel material blanking point can easily close to the center high temperature area of the furnace, so that the cold area phenomenon is eliminated; as the diffusion and heat exchange designs are realized, the powder dust in the exhausted flue gases is greatly reduced, the flue gas flowing is more in line with the natural rules, and the problems of exhaust pipe blockage and the like are solved.

The invention discloses a preparation method of a nitrogen-doped graphene/nitrogen-doped carbon nanotube/zinc cobaltite composite material. The method comprises the following specific steps: (a) adding potassium permanganate, hydrochloric acid and hydrogen peroxide to graphene oxide, and carrying out a stirring reaction to obtain porous graphene; (b) dialyzing the porous graphene for 8-12 days, carrying out ultrasonic dispersion, then adding a carbon nanotube, carrying out ultrasonic mixing and carrying out suction filtration to form a film; (c) drying the film, and then adding ammonium hydroxide for reaction for 24 hours; (d) adding zinc nitrate, cobalt nitrate, urea, ammonium fluoride, absolute ethyl alcohol and distilled water for reaction for 4 hours; and (e) transferring a mixture to a tube furnace, and sintering the mixture in a nitrogen atmosphere for 2 hours, so as to obtain the composite material. The composite material has relatively good flexibility; the electrochemical properties are barely changed after the composite material is bent into various angles; the specific capacitance value of the composite material can be up to 1802F/g; compared with relatively simple graphene, the carbon nanotube and most of composite materials of the graphene and the carbon nanotube, the composite material provided in the invention are significantly improved.

The invention discloses a liquid crystal display panel and a display device. The liquid crystal display panel comprises a substrate and a stopping wall, wherein the substrate comprises a display area used for displaying and a sealing area used for sealing, and the stopping wall is formed on the substrate and located between the sealing area and the display area. A coarse structure is arranged on the lateral side, near the display area, of the stopping wall. In this way, by means of the liquid crystal display panel and the display device, the impact force of alignment liquid to the stopping wall can be reduced through the coarse structure of the lateral side of the stopping wall in the coating process of an alignment film; meanwhile, the adhesive force of the alignment liquid to the stopping wall is increased, and therefore the problem that as the alignment liquid refluxes to the display area, the thickness of the alignment film is uneven is solved. In addition, the coating accuracy and the coating efficiency of the alignment film can be improved by arranging the stopping wall, and then the product yield of the liquid crystal display panel is increased.

The invention discloses a film tearing mechanism and a film tearing method; the film tearing mechanism comprises a press, two supporting wheels and an adhesive tape. The press is used for clamping sheet; the lower surface of the sheet is provided with a glue film; two supporting wheels are respectively arranged at two sides below the press; the adhesive tape is arranged at one supporting wheel and surrounds the other supporting wheel; the adhesion surface of the adhesive tape faces to the glue film and leads the back towards the two supporting wheels, wherein, when the press is reduced, the sheet is arranged on the bonding surface; the sheet is arranged between the two supporting wheels and is provided with distance respectively in the horizontal direction; the sheet is not bumped with two supporting wheels due to extrusion; furthermore, the glue film of the sheet forms surface contact with the bonding surface. When the film tearing mechanism is used to tear the glue film, as the sheet is not bumped to the two supporting wheels by extrusion, sheet-breaking problem can be avoided; furthermore, the glue film and the adhesive tape form the surface contact, and the contact area of the flue film is increased, thus ensuring the success rate of the film tearing.

The invention discloses a charging pile with a good heat dissipation effect. The charging pile with the good heat dissipation effect comprises a charging pile shell, supporting legs are fixedly connected to four corners of the bottom of the charging pile shell, an exhaust fan is fixedly connected to the bottom of the charging pile shell, an air inlet cover communicates with the right side of the exhaust fan, the top of the air inlet cover penetrates through an inner cavity of the charging pile shell, and a temperature sensor is fixedly connected to the right side of the inner cavity of the charging pile shell. Through the cooperation of the charging pile shell, the supporting legs, the air inlet cover, the temperature sensor, a motor, a worm, rotating rods, worm wheels, fan blades, a watertank, a water adding pipe, a water pump, a connecting pipe and a cooling elbow pipe, the temperature of the inner cavity of the charging pile shell can be detected, if the temperature is too high, heat quantity in the inner cavity of the charging pile shell can be rapidly emitted, meanwhile, the inner cavity of the charging pile shell can be refrigerated to achieve the effect of rapid cooling, and the service life of the charging pile is prolonged.

The invention belongs to the technical field of connecting terminals and relates to a manufacturing method of a copper-aluminum composite terminal and the composite terminal manufactured thereby. The manufacturing method comprises the steps of preparing materials, punching the materials, punching a fixed mounting hole of a conducting wire, turning a round corner, press-molding, finishing, punching, coating a protective agent, coating electric force compounded grease and the like; and the copper-aluminum composite terminal manufactured by the method comprises the cylindrical end and the flat end which are mutually connected, and each end consists of an aluminum layer and a copper layer stuck on the aluminum layer, thereby effectively solving the shortcomings and the defects of easy rupture and easy corrosion in a copper-aluminum solder terminal in the prior art and improving the overall quality of the copper-aluminum composite terminal.

The invention discloses a phosphorus-free foam-free low-temperature steel plate surface cleaning agent and a preparation method thereof and is applied to production of coating steel plates. The cleaning agent comprises the following chemical components: 5-30 percent of sodium hydroxide, 5-30 percent of sodium carbonate, 3-15 percent of sodium silicate, 0.5-3 percent of chelating agent, 1-10 percent of anionic surfactant, 0.1-1 percent of full-mixture block polyether nonionic surfactant, 0.1-2 percent of silicone oil and 50-75 percent of water. The preparation method comprises the following steps of: adding sodium hydroxide into a small amount of water, adding the chelating agent, and uniformly stirring; adding water, keeping the temperature to be 20-30 DEG C, sequentially adding sodium carbonate and sodium silicate, and stirring until the mixture is dissolved; adding the anionic surfactant, the full-mixture block polyether nonionic surfactant and the silicone oil, and stirring until the mixture is dissolved; and finally adding water and uniformly stirring. Multiple surfactants are used for compounding, so that the cleaning agent can be adsorbed to the surface of a cold-rolled steel plate, an ideal emulsifier is formed, the tension of an oil-water interface is reduced, the contact area is increased, and multiple effects of defoaming, permeating and cleaning are simultaneously realized.

The invention discloses a luminous display with round tip-shaped double-gate controlled spring water-sprayed cathode structure, which comprises a vacuum chamber formed by a front glass sealing panel, a back glass sealing panel and a transparent glass frame. The front glass sealing panel is provided with an anode conductive layer, a luminescent layer on the anode conductive layer and an anode outer wiring layer connected with the anode conductive layer. The back glass sealing panel is provided with the round tip-shaped double-gate controlled spring water-sprayed cathode structure. The display also comprises isolation walls and getter attached components in the vacuum chamber. The luminous display of the invention has the advantages of being manufactured at low production cost and through simple production process while achieving high brightness.

The invention relates to a high-temperature crude synthesis gas chilling device, which comprises a gas flow channel of a chiller and an atomizing nozzle arranged on the side wall of the gas flow channel, wherein the gas flow channel is connected with a reaction chamber and a cooling chamber of a gasification furnace and provides a mixing space for a chilling medium and high-temperature crude synthesis gas; the atomizing nozzle is a single-flow-channel pressure nozzle or a double-flow-channel gas-liquid two-phase nozzle, and is partitioned into 1-20 layers; each layer is uniformly distributed on the circumference and is used for uniformly spraying the chilling medium into the high-temperature crude synthesis gas and chilling the synthesis gas to be in a specific temperature range; the gas flow channel is a water cooled-wall or a fire-resistant and wear-resistant liner or the combination of the water-cooled wall and the fire-resistant and wear-resistant liner; and the gas flow channel has a cylindrical structure or a conical structure or the combination of the cylindrical structure and the conical structure. The chilling device has the advantages of high chilling efficiency, large gas-liquid contact area, high chilling rate, small dosage of the chilling medium, mature manufacturing technology, high reliability and capability of reducing the consumption and the discharge of cleaning black water, and relates to an environmentally-friendly and-energy saving technology.

The present invention is applicable to the field of transparent conductive films, and provides a transparent conductive film of silver nanowires. The transparent conductive film of silver nanowires includes a flexible substrate and silver nanowires covered on the flexible substrate. The silver nanowires The wires are connected in a flattened manner; the flattened connection is an interconnected network formed by plastically deforming the silver nanowires from a cylindrical shape to a strip shape. In the silver nanowire transparent conductive film provided by the present invention, the silver nanowires in the transparent conductive film are inlaid on the flexible substrate in a network shape, and the silver nanowires are flattened and connected, with close contact, large contact area, and no need Adding any binder, the light transmittance of the obtained transparent conductive film can reach 85%-90%, the square resistance is reduced to 30-50Ω/square, and the haze is 3-15.

The invention provides copper conductive slurry. The copper conductive slurry is prepared from the following raw materials and components in parts by weight: 70wt% to 90wt% of approximately spherical micron copper powder of polyhedron appearance, 0.01wt% to 3wt% of a stabilizer, 0.1wt% to 5wt% of a binder and 9wt% to 30wt% of a solvent. In the invention, the slurry adopts the proximately spherical micron copper powder with high single crystal content, and the copper powder is large in contact area, easy to sinter and high in specific conductance; the used copper powder is 0.5 to 3 microns in particle size, and can meet the using requirement of fine circuits; flash sintering is directly carried out after silk-screen printing, and the copper conductive slurry is simple in technology and is applicable to large-scale production; the stabilizer is added in the system, copper oxide is reduced in the sintering process, the content of the copper oxide in a copper line is reduced, a conductive circuit with low copper oxide content is obtained, and the conductive slurry adopts the aqueous binder, so that the copper conductive slurry has the characteristics of being environmentally-friendly, energy-saving and easy to clean.

The invention discloses a scrap steel preheating and continuous feeding system constructed based on a waste heat recovering channel of an electric-arc furnace and an application method of the system. The waste heat recovering channel of the electric-arc furnace is formed by connecting a flow guide tube, a transition tube, a heat exchange and material storing box and a preheating channel, wherein hot gas sequentially flows through the flow guide tube, the transition tube, the heat exchange and material storing tube and the preheating channel; a scrap steel storing box, a heat-resistant chain scraper conveyor and a hydraulically-controlled feeding trolley are mounted on a foundation of the waste heat recovering channel of the electric-arc furnace to form the scrap steel preheating and continuous feeding system; the scrap steel is conveyed from low to high through the chain scraper conveyor in the preheating channel and continuously fed into the heat exchange and material storing box to be stacked, and then the feeding trolley at the inner bottom part of the heat exchange and material storing box can continuously intermittently move to push the scrap steel by layers from the bottom into the electric-arc furnace to smelt; the scrap steel fed into the furnace is at the temperature exceeding 900 DEG C, and more than 120kW.H/T of electricity can be saved; the gas can be discharged from the preheating channel while being cooled to be 100-150 DEG C and then dedusted for later use, and thus the energy can be saved, and the consumption can be decreased; in addition, the continuous feeding system does not affect the automatic slag flowing and tapping works of the electric-arc furnace.

The invention relates to a lightning-protection earthing device, in particular to a double-shielding lightning rod and an earthing device, in particular to a lightning-protection earthing device suitable for fields, such as communication, electric power or traffic and the like. The lightning-protection earthing device belongs to the technical field of lightning-protection earthing. The double-shielding lightning rod and earthing device comprises a lightning rod tube, one end part of the lighting rod tube is provided with an insulated post fixedly connected, and the insulated post is provided with a calabash ball provided with a conducted ball tip; the conducted ball tip is provided with an anti-lightning shielding cable of which one end is connected with the conducted ball tip, and the other end passes through the calabash ball and the insulated post to extend into the lightning rod tube; the anti-lightning shielding cable is distributed along the length of the lightning rod tube; and the other end of the anti-lightning shielding cable, which is correspondingly connected with the conducted ball tip, is connected with a grounding electrode. The earthing device is compact and simple in structure, has good anti-lightning effect, can effectively attenuate thunder and lightning electromagnetic pulse, is convenient to install and use and is safe and reliable.

The invention discloses a flexible mechanical hand which comprises a connection column with a hollow cavity, a total air inlet formed in the connection column, a connection plate arranged at one end of the connection column and at least two finger mechanisms. Each finger mechanism comprise a finger face, a finger back, a first cavity arranged between the finger face and the finger back, at least one semicircular arch body arranged on the finger back, a second cavity formed in the semicircular arch body and communicating with the first cavity, and a convex portion which is convexly arranged onthe other side of the finger face and provided with the lower surface being an inclined face, wherein the swelling deformation of the finger back is larger than that of the finger face. Each finger mechanism further comprises a connecting piece connected to the root of the corresponding finger, a third cavity arranged in the connecting piece and communicating with the first cavity, an air inlet formed in the connecting piece, an air outlet formed in the connection column and communicating with the air inlet, a sliding groove formed in the connecting piece, and a sliding rail arranged on the connecting plate and used for penetrating into the sliding groove. The flexible mechanical hand is large in grabbing force and capable of gabbing objects with different sizes.

The invention relates to a flexible physiological dry electrode and a preparation method of the flexible physiological dry electrode. The flexible physiological dry electrode comprises a conductive poly-dimethyl siloxane electrode and a connection buckle; the conductive poly-dimethyl siloxane electrode is used for contacting the skin; the connection buckle is used for leading out a lead to a measurement circuit, and the connection buckle is partially embedded inside the conductive poly-dimethyl siloxane electrode. The conductive poly-dimethyl siloxane electrode has the advantages of being high in collecting quality, strong in reliability, safe and comfortable, low in cost and wide in application range.

The invention discloses an efficient treatment device for industrial waste gas. The efficient treatment device comprises an electric dust removal tank, a cleaning dust removal tank and a drying device, wherein a plurality of vertical partition boards are arranged at the bottom of the electric dust removal tank, an electric dust removal assembly is arranged at the top of the electric dust removal tank and adopts an adsorption plate which bulges downwards, is in a wavy shape and is used for realizing electric dust removal, the adsorption plate is connected with an electric dust removal device circuit fixed on the outer side of the electric dust removal tank, an internal slide rail is arranged on the inner side surface of the adsorption plate, a plurality of sliding motors are glidingly connected onto the internal slide rail, cleaning sliders are arranged on the sliding motors, bumps of the adsorption plate and the vertical partition boards are matched to form an S-type electric dust removal channel, the left side of the electric dust removal channel is communicated with a gas inlet pipe, and a pretreatment filtering device is arranged on the gas inlet pipe. The efficient treatment device has the advantages that the structure is simple, the waste gas treatment effect is good, the occupied area and space are small, and inside of the dust removal channel can be cleaned in real time.

The rolling crusher comprises at least a set of main shaft, each comprising at least two main shafts in parallel position, crushing roll on the main shaft with several convexes and concaves in wave like distribution, with the adjacent convex and concave of two crushing roller matching with each other with gaps between them. The crushed material goes through the gap between the crushing rollers with pressing and tearing. It has low noise, high output, low energy consumption, feasible for the crushing of food and forage.

The apparatus 100 for connecting bars according to the present invention comprises a pair of bodies 100 for receiving the bars 1, the pair of bodies having cylindrical shape which faces from each other; a plurality of stoppers 120 for firmly holding the bars 1, the plurality of stoppers 120 provided in the pair of bodies in two steps or several steps; a spring 130 for elastically longitudinally supporting the pair of bodies 110, the spring 130 provided in the bottom surface of the plurality of stoppers 120; and an elastic ring 140 for elastically supporting the plurality of stoppers 120 in the radial direction of the pair of bodies, the elastic ring 140 provided on the inner peripheral surface of the plurality of stoppers 120.

The invention discloses application of a heteroatom-doped porous carbon coated cuprous phosphide composite catalyst in electrocatalytic oxygen reduction reaction and belongs to the technical field ofcomposite catalysts, electrocatalytic oxygen reduction and zinc air cells. The composite catalyst is obtained by using a nitrogen-phosphorus double-heteroatom mixed copper-based metal-organic frame material (Cu-NPMOF for short) as a precursor and carbonizing and phosphorizing, and is used for efficient electrocatalytic oxygen reduction. In potassium hydroxide electrolyte of 0.1 mol L-1, oxygen reduction semiwave potential of the catalyst is 0.78 V, and extreme diffusion current is 5.57 mA cm-2. 38 h's circular charging and discharging tests of zinc air batteries assembled by using the catalystshow that charging and discharging voltage difference has no obvious change, this indicates that the catalyst has quite high stability and high actual application value.

The invention discloses a sewage treatment tank capable of recycling treatment, which comprises a treatment tank body, a filter screen, a stirring rod and an observation window. The treatment tank body is composed of a heating chamber and a biological reaction chamber, and the heating chamber is located in the biological reaction chamber The top of the heating chamber is installed with a feed inlet, a motor and a water inlet in sequence from left to right, the filter is located above the inside of the heating chamber, and a connecting shaft is installed inside the heating chamber, and the stirring rod Located on both sides of the connecting shaft, a water outlet pipe is arranged under the heating chamber, and a filter ball is installed inside the biological reaction chamber. In the recyclable sewage treatment tank, the filter screen filters large-volume impurities in the sewage to avoid blockage of the overall water pipe caused by solid impurities, and the stirring rod stirs the sewage, which is convenient for rapid heating and at the same time increases the contact between the sewage and the powder area, improve the effect of disinfection, and the filter ball prevents pollutants from being re-extracted.

The invention discloses a drying and dispersing device for wet powder materials. The device comprises a drying cylinder, multiple screening plates and an anti-settling rotary assembly. The drying cylinder comprises a cylinder body, a top cover and a cylinder bottom, a feed inlet is formed in the lower portion of the side wall of the cylinder body, and a discharging opening is formed in the top cover. The anti-settling rotary assembly comprises a rotary rod, a connecting plate, a scraper and a rotation driving element, the rotary rod penetrates through the cylinder body or the two side walls of the cylinder bottom and is arranged below the feed inlet, the rotation driving element is fixedly connected with the end of the rotary rod and arranged on the outer side of the cylinder body or the outer side of the cylinder bottom, the lower end face of the connecting plate are matched with the upper end face of the cylinder bottom, the screening plates are transversely arranged in the cylinder body and are longitudinally distributed along the axis of the cylinder body, the screening plates are provided with a plurality of screening holes penetrating through the upper end faces and the lower end faces of the screening plates, and according to every two adjacent screening plates, the aperture of the screening holes in the lower screening plate is larger than that of the screening holes in the upper screening plate. The drying and dispersing device overcomes the defects of an existing flash dryer, and has the advantages of being good in drying performance, high in reliability and low in cost.

Disclosed herein is a touch panel. In the touch panel, electrode patterns included in the touch panel may be orthogonal to each other in an intersecting point, and formed of a combination of unit patterns having a bent straight line shape. Accordingly, it is possible to prevent a contact area of the electrode patterns that intersect in the intersecting point from being increasing, thereby reducing visibility of the electrode pattern.

The invention relates to a safe portable multifunctional oxygen-hydrogen integrated machine, which belongs to the technical field of health-care equipment. The safe portable multifunctional oxygen-hydrogen integrated machine comprises an existing electrolysis unit, and an ultrasonic unit, a heating unit and a pressure unit are arranged in a machine body, wherein the ultrasonic unit mainly utilizes the atomization effect of an ultrasonic microporous atomization piece, the heating unit mainly utilizes a heating piece to control the temperature of water, and the pressure unit utilizes a pressure sensor to monitor the gas pressure in the machine body, so that multiple functions of producing hydrogen, oxygen, an oxygen-hydrogen mixture, hydrogen-enriched fog, oxygen-hydrogen-enriched fog, hydrogen-enriched water and oxygen-hydrogen-enriched water can be realized. The dissolved degree of hydrogen in the hydrogen-enriched water prepared by the safe portable multifunctional oxygen-hydrogen integrated machine is high, the effect of the hydrogen-enriched water is good, therefore, a cup required, by equipment, for containing water is small, and the dissolved degree of gas can be increased by adopting the hyperbolic tower-shaped cup. Compared with the prior art, the safe portable multifunctional oxygen-hydrogen integrated machine has the advantages of small size, convenience in carrying, high safety and less possibility in danger occurrence when the machine is used for producing hydrogen.

The invention provides a process for extracting ginkgo leaf polysaccharide with the aid of ultrasonic. The extracting process is technically characterized by comprising the following steps of: drying ginkgo leaves (ginkgo leaves after autumn), crushing and sieving (40 meshes), performing ultrasonic treatment (the distilled water is used as a solvent, and the temperature is controlled at 80 DEG C), centrifuging (removing residue), performing vacuum concentration (till 1/10 before concentration), performing alcohol precipitation, centrifuging (taking sediment), and performing vacuum freezing and drying to obtain a crude polysaccharide product. The process has the advantages that: the ultrasonic is acted on the liquid to generate cavatition during production to cause bubble formation, increment and blasting compression so as to disperse a solid sample, increase the contact area between the sample and the extracting solvent, improve the transfer rate of a target substance from solid phase to liquid phase, shorten the extracting time, reduce energy consumption and improve the extracting rate.

The invention provides a liftable rack and refrigeration equipment. The liftable rack comprises a rack body and a liftable mechanism which comprises a drive mechanism and a guide mechanism, wherein the drive mechanism and the guide mechanism are connected to the rear end of the rack body; the drive mechanism is used to drive the rack body to move linearly up and down along the guide mechanism; andconnection parts between the drive mechanism and the guide mechanism and the rack body are located along the width direction of the refrigeration equipment. The liftable rack is characterized in thatthe drive mechanism and the guide mechanism are configured along the width direction of the refrigeration equipment; two pivots are formed at the connection parts between the drive mechanism and theguide mechanism and the rack body; and the two pivots are configured along a left-right direction of the rack body, so the two pivots are limited by each other, and rotation of the rack body along a rotation axis which extends along the front-back direction of the rack body relative to the liftable mechanism is effectively prevented. In this way, left-right inclination of the rack body is prevented based on principles of mechanical limiting and thus stability of ascending and descending motion of the rack body is enhanced.

The invention provides a high mixing power blending device capable of separately adding solid and liquid. The high mixing power blending device comprises a mixing tank, an upper cover and a driving box, wherein a top opening of the mixing tank is provided with the upper cover; the upper cover is provided with a solid charging device and a liquid charging device; the solid charging device consists of a smashing tank, a smashing motor, a smashing spindle and smashing blades; the liquid charging device consists of a transmission box, a servo motor and a rotary sprinkling disc; a third gear, a fourth gear and a fifth gear are arranged in the transmission box; the third gear and the fourth gear are mutually meshed, and the third gear and a second stirring shaft in a second stirring device are fixedly connected; the fifth gear and the fourth gear are mutually meshed, and the fifth gear and a first stirring shaft in a first stirring device are fixedly connected. Through the lifting and the lowering of a lifting plate, materials can be vertically mixed, and the materials on the bottom of the mixing tank are stirred and mixed by the first stirring device and the second stirring device.