42results about How to "Won't bring" patented technology

The invention belongs to the technical field of administration equipment, and particularly relates to a polymer coating microneedle patch convenient for antibiotic skin testing and a preparation method thereof. A microneedle in the polymer coating microneedle patch comprises a needle portion and a coating portion, the needle portion is made from a biodegradable and insoluble polymer material, and the coating portion comprises a soluable polymer material, a stabilizer and drug which is antibiotic. Compared with the prior art, the polymer coating microneedle patch has the advantages that the polymer coating microneedle patch can achieve the objective of quick skin testing, and an administration mode through the polymer coating microneedle is noninvasive, so that no damage is caused to human bodies. In addition, the administration mode is convenient and saving and does not bring about biological waste.

The invention provides a trenching machine and a control system thereof, and belongs to the technical field of ground surface construction engineering. The trenching machine comprises a control box, an excavating device, a travelling device and a soil storage bucket which is mounted above the control box; a control device, a first power device which provides power for the excavating device and a second power device which provides power for the travelling device are arranged in the control box; according to the trenching device and the control system thereof provided by the invention, the travelling device adopts crawler wheels which are arranged on the two sides of the control box; the overall width of the machine is small, and the crawler wheels grip the ground firmly, so that construction can be performed in an area with small space and a muddy ground surface; a soil discharging channel is formed behind an excavating bucket; the soil which is excavated by the excavating bucket can be discharged into the soil storage bucket through the soil discharging channel; redundant garbage cannot be brought to surrounding environment; the machine is controlled to operate by adopting a remote controller, and is not required to be driven by a driver; labour is saved, and the danger of casualties caused by construction in a dangerous environment is also avoided.

The invention discloses a method for preparing acicular and fungiform Bi2O3 nano materials, which is implemented by taking tris (2, 2, 6, 6-tetramethyl-3, 5-heptanedionato) bismuth, deionized water and substrates as raw materials through the steps of sequentially feeding the raw materials in a pulse mode, then carrying out surface adsorption chemical reaction on the obtained products so as to obtain the acicular and fungiform Bi2O3 nano materials. The method disclosed by the invention is implemented by using a chemical vapor deposition system or an atomic layer deposition system. The method has the advantages of low reaction temperature, simple growth condition, high repeatability, no impurity, high controllability and the like; and the prepared Bi2O3 nano materials have a wide application prospect in the fields of sensors, catalysts, and the like.

The invention discloses a plasma processor, a wafer jacking device and a method thereof. A base is arranged in a reaction cavity, a mounting plate is arranged below the base, the base and the mountingplate are provided with through holes to form a guide channel, and the wafer jacking device comprises an ejector pin assembly at least partially located in the guide channel, wherein the ejector pinassembly comprises an ejector pin and an ejector pin central shaft for driving the ejector pin to lift, and a sealing corrugated pipe is arranged outside the ejector pin central shaft; a driving assembly which is used for driving the ejector pin to ascend and descend in the guide channel; a height adjusting assembly which comprises a height-adjustable support, wherein the height-adjustable supportis connected with the center shaft of the ejector pin and an adjusting screw; wherein a height adjusting hole is formed in the mounting plate in a penetrating mode and used for containing a height adjusting tool and rotating the adjusting screw, height adjustment of the height-adjustable support is achieved, and the height adjusting tool is detachably located in the height adjusting hole. According to the invention, the high levelness of the top ends of the plurality of thimbles can be ensured; the height of the thimble can be directly adjusted above the mounting plate in the reactor, so thatthe working efficiency is improved.

The invention discloses a production technology of yellow wine lees proteins by the enzymatic extraction. By the production technology, nutritional components are not destroyed and the extraction efficiency is high. The production technology comprises the following steps of: 1) washing the yellow wine lees and removing impurities, carrying out hydrolysis by the use of cellulose, drying the yellow wine lees after the hydrolysis by the use of cellulose until the water content reaches about 50%; 2) using alkaline enzyme and a-amylase as enzyme preparations with the ratio of alkaline enzyme to a-amylase being 5: 1 and the enzymatic amount being 1832AU, carrying out hydrolysis on the yellow wine lees proteins for 4 hours while the temperature is 48-50 DEG C and the PH value is 9.5; 3) separating a yellow wine lees protein hydrolysate by the membrane separation technology while the pressure is 30psi, the pH value is 9, the concentration ratio is 5:1, the temperature is room temperature and the permeation flux is 33.2L/m<2>h. The invention is suitable for the extraction of the yellow wine lees proteins.

The invention discloses a roasting flue gas treatment method for a carbon anode. The roasting flue gas treatment method comprises the following steps: a flue gas discharged out of a roaster enters a combustion furnace and passes through a combustion region and a denitration region of the combustion furnace for combustion and denitration, and then, the amount of a fuel sprayed into the combustion region is determined by the temperature of the denitration region; after that, waste heat of the flue gas entering a heat recovery boiler is fully utilized, then, the temperature of the flue gas is reduced to 150-230 DEG C; the flue gas further enters a desulfurizer for desulfuration; the desulfurized flue gas is subjected to dust removal by an electric detarring precipitator; and finally, the fluegas is discharged into the atmosphere. The current problems of high energy consumption and poor asphalt disposal effect during purification of a roasting flue gas of a carbon anode are solved. The environmental protection requirements for energy saving and ultra-low emission of the roasting flue gas of the carbon anode can be well satisfied.

The invention discloses a method for producing high-purity ammonium chloride from industrial-grade ammonium chloride. According to the method industrial-grade ammonium chloride is used as a raw material, and the method comprises: removing metal ions such as potassium, sodium, magnesium, iron and the like by twice crystallization leaching according to different solubility and different solubility changes of ammonium chloride salt and other metal chlorides at different temperatures, then heating and concentrating by steam to obtain ammonium chloride with higher purity, and purifying the treatedammonium chloride again through cation exchange resin, so that the content of metal ions in the ammonium chloride is lower than 100 ppb, and the grade of the ammonium chloride which can be applied toelectronic-grade products is achieved. According to the treatment method, the yield of ammonium chloride can reach 80-90%, no new chemical substance is introduced in the treatment process, no new pollutant is brought to an original ammonium chloride system, meanwhile, collected leacheate and filtered mother liquor are collected, finally low-grade ammonium chloride is obtained and used for fertilizer and other industries, and application of resources is maximal.

The invention discloses a preparation method and a production device preventing citric acid coagulation. The preparation method comprises the following steps: introducing steam and preparing a citricacid crude product solution, performing decoloration treatment to obtain a fine filtrate, concentrating the fine filtrate to obtain viscous liquid, cooling and crystallizing to obtain wet citric acidparticles, and centrifuging the wet citric acid particles to obtain high-yield and high-purity citric acid crystal particles. In the invention, the preparation technology is optimized; the key point is characterized in that steam is introduced in the preparation process, the problem of citric acid caking in the production process of citric acid and unforeseen circumstances is effectively solved, and blocking of a discharge bottom valve and a pipeline connected with a discharge valve is prevented. Meanwhile, the production technology has the advantages of simplicity, low cost, easiness in operation and implementation, environmental friendliness and safety.

The invention discloses a clamping type ear-wearing device, which comprises an earphone main body, a loudspeaker module and a clamping part, and is characterized in that the earphone main body is internally provided with a first PCB; and the loudspeaker module is arranged in the head of the earphone main body and is electrically connected with the first PCB. One end of the clamping part is movablyfixed at the connecting end of the earphone main body; when the earphone is worn, the clamping part and the earphone main body are respectively clamped on the outer side and the inner side of an ear,and the head of the earphone main body clings to the inner side or earlobe of the ear. The clamping type ear-wearing device is fixed on the ear in a clamping mode and has the advantages of being stable in wearing, not prone to falling off, good in concealment and convenient to carry. When the clamping type ear-wearing device is worn, the ear canal is not closed, a user can hear external sound, the use is safer, the hearing is protected, the wearing comfort is enhanced, the pressure feeling is reduced, and the discomfort caused by the unbalanced ear pressure state due to the closed ear canal is avoided.

The invention discloses a method for removing chloride from an alkaline zinc solution, relates to a process for removing impurities such as chloride ion and the like from a process for producing high-purity metallic zinc by taking zinc oxide ore, powder or slag as a raw material through alkaline leaching-electrolysis. The method comprises the following steps: NaOH and the zinc oxide are added with stirring to the alkaline zinc solution the Cl<-> concentration of which is more than 70g/L, or/and the solution is heated for concentration to increase the NaOH concentration to 400-600g/L and the Zn concentration to 60-120g/L; the mixture is cooled to normal temperature, continuously stirred for 20-60min and kept standing for 40-120min during which a large amount of chloride is crystallized and separated out from the solution because of the sharp decrease of the solubility; then the solid is separated from the liquid, and filtrate is diluted with water and adjusted to the alkaline zinc concentration level before purification, so that the Cl<-> concentration decrease to less than 5g/L and the impurity ions such as Fe, Cu, As, Cd and the like in the solution are also removed at the same time, which meets the requirements of the subsequent electrolysis process operation; and purification slag is sold to the chlor-alkali industry as a raw material. The method has the advantages of significant Cl<-> removal effect, simple operation and the like, thoroughly solves the problem of causing damage to the zinc electrowinning and extracting from the alkaline zinc solution due to continuous accumulation of the Cl<-> impurity.

The invention provides a preparation method of a silicon carbide ceramic film for a metallurgical nozzle. The preparation method comprises the following steps that (1) all raw materials including Al2O3, SiC, ZrO2, SiN4, calcined kaolin, 3-5 parts of talc, a small-particle-size pore-forming agent, a large-particle-size pore-forming agent, a binder, a lubricating agent, a dispersant and water are mixed evenly; (2) the working surface of a long nozzle or a submerged nozzle is coated with the mixed raw materials and heated to 350-450 DEG C, and the temperature is maintained for 30-50 minutes; and(3) heating continues being conducted to 1350-1420 DEG C, the temperature is maintained for 2-3 hours, and the ceramic film is baked on the working surface of the long nozzle or the submerged nozzle.The ceramic film prepared by the preparation method is of a porous structure, can absorb thermal impact, provides thermal shock buffer for a nozzle body and falls off after the nozzle body works for 5-7 hours, the fallen-off ceramic film is replaced with a layer of new ceramic film for the nozzle body to continue working, and the working life is prolonged to 16-20 hours.

The invention provides a method for artificial propagation of mytilus coruscus in an intertidal zone of a rocky reef phase. According to the invention, mytilus coruscus juveniles are temporarily conserved at a sea area; the mytilus coruscus larvae are wrapped in net bags prepared with a papyrus material; the net bags with the mytilus coruscus larvae are connected in series, and are placed into the intertidal zones of the rocky reef phase or a dimension stone phase of a natural sea area, such that the artificial propagation of the mytilus coruscus is completed. According to the invention, thick hemp ropes are selected as an attachment base, and thin hemp ropes are wound on the thick manila ropes, such that the base surface area to which mytilus coruscus byssuses are attached is increased. The net bags used for wrapping the mytilus coruscus larvae and the hemp ropes used for attachment of the mytilus coruscus larvae can be rapidly digested under seawater erosion, such that artificial removal is not needed. Therefore, manual labor is effectively reduced, and plastic garbage is not brought to the environment. Mytilus coruscus can first attach to the net bags or the hemp ropes, and with the digestion of the net bags and the hemp ropes, the mytilus coruscus can attach to rocky reef gaps. With the mytilus coruscus secondary attachment manner, mytilus coruscus larvae attachment rate on the rocky reef is greatly improved, and the mytilus coruscus artificial propagation effect is improved.

The invention discloses a split portable biomass gasifier, which is convenient to carry outdoors and can be safely and effectively used. The gasifier comprises an upper-layer gasifier body, a lower-layer gasifier body, buckles, a stove, a sieve plate, a biomass feed bin, a solid feed connecting pipe, a positive-pressure isolation plate, a gas connecting pipe, a drying chamber, a gas-solid feed linkage device, a centrifugal fan, a tar separation tank, a dust removal purification pipe, ignition equipment, a six-way valve and a combustion chamber. According to the split portable biomass gasifier, by virtue of the gas inflow and biomass feed linkage device, the rate of the gasifier is adjustable, a fuel is saved, and meanwhile, a biomass can be continuously fed; compared with a conventional gasifier incapable of controlling heat in a biomass combustion process, the gasifier has the advantages that multifunction such as water boiling under big fire and stewing under small fire can be freely selected, so that the utilization rate of the fuel is increased, energy is saved, and emission is reduced; when the split portable biomass gasifier is idle, the upper-layer gasifier body and the lower-layer gasifier body can be separated; the split portable biomass gasifier is low in investment cost, convenient to mount and operate and wide in application range.

The invention discloses an edible oil barrel for quantitative oil extraction, which comprises: a barrel body, a barrel mouth is arranged at the upper end of the barrel mouth, a barrel cover is arranged at the upper end of the barrel mouth, and a barrel is arranged on one side of the barrel body A handle is provided in the middle, and an oil extraction cylinder is provided at the upper end of the other side of the barrel, a valve cavity is arranged in the oil extraction cylinder, and a valve chamber is arranged in the oil extraction cylinder at the upper end of the valve cavity to interact with the valve cavity. The connected valve stem sliding chamber, the quantitative oil taking chamber connected with the valve chamber is arranged in the oil taking cylinder at the lower end of the valve chamber, and several scales are uniformly arranged on the oil taking cylinder on one side of the quantitative oil taking chamber A valve stem is slid in the sliding chamber of the valve stem, the lower end of the valve stem extends into the valve chamber and communicates with the valve clack, and the upper end of the valve stem extends out of the oil pick-up cylinder to connect with the pressing head , a spring is sheathed on the valve stem between the pressing head and the oil-taking barrel.

The invention provides a dirty clothes basket for domestic life, and relates to the technical field of household. The dirty clothes basket for the domestic life comprises a barrel body, wherein a movable sleeve is inserted in one side of the barrel body; the inner wall of the movable sleeve is sleeved with a rotating rod; a supporting frame is inserted in one side of the rotating rod. According tothe dirty clothes basket for the domestic life, provided by the invention, through the matching arrangement of the barrel body, a top cover, a sterilizing lamp, a hose, a tank body, a fan motor and fan blades, a plug can be taken out when the top cover is opened, so that a drying agent can be poured into the tank body through the hose, the drying agent in the tank body can be blown in the barrelbody by rotating the fan blades through the fan motor, the sterilizing lamp can be turned on when the top cover is covered, bacteria on clothes can be effectively killed through the sterilizing lamp,the clothes can be effectively dried through the drying agent, the bacteria are not easy to propagate on the clothes in the dirty clothes basket, and the problem that the bacteria can be easily propagated on the clothes in an existing dirty clothes basket under a damp environment can be solved.

The invention discloses a solar-assisted power type negative pressure biomass gasifier used in remote areas and outdoors. The gasifier comprises a biomass bin, a drying chamber, a combustion chamber, a control box, a photovoltaic cell panel, a feed blade and a stepper motor, a solid feed connecting tube, a positive pressure separation plate, fasteners, a combustion chamber liner, a combustion chamber insulation layer cover, a thermoelectric power generation chip, a lead storage battery, a centrifugal fan, a six-way valve, a dust removal purification pipe, a tar separation tank, a furnace, a phase change heat storage material filling opening, a sieve plate, a drying chamber connecting pipe, a combustion chamber connecting pipe, an ignition device, a 5.5VDC power outlet and a 12VDC power outlet. The solar-assisted power type negative pressure biomass gasifier can still provide household energy and charge mobile phones and electronic products under extreme conditions to ensure normal life and contact with outside of users. The gasifier is stable in structure, easy to install and operate and wide in application range.

The invention discloses dermatological teatment equipment for stucco keratosis. The equipment comprises an L-shaped shell, wherein a transmission cavity is formed in the shell, a power device is installed in the transmission cavity, the lower end of the power device is connected with a smearing massage device with the power device as power, the smearing massage device is located at the lower end of the shell, a feeding device powered by the power device is arranged at the right end of the power device, a stirring device is arranged at the lower end of the feeding device, an adjusting device is arranged at the lower end of the stirring device, and a scraping device is arranged at the right end of the smearing massage device. Aiming at the defect that no special equipment for treating the stucco keratosis is reported in the prior art, the invention provides the dermatological teatment equipment for stucco keratosis; and the equipment can be used for massaging and scraping a lubricating agent on a smearing side wall while smearing the lubricating agent.