27results about How to "Accurate dose" patented technology

The utility model belongs to the technical field of thermosetting powder coating processing, and particularly relates to a quantitative feeding device for environment-friendly thermosetting powder coating processing, which comprises a plurality of raw material feeding hoppers, a plurality of control valves, a plurality of small quantitative feeding mechanisms and a plurality of annular weighing devices. The multiple small-volume quantitative feeding mechanisms are installed above the raw material feeding hopper, the outer wall of the raw material feeding hopper is fixedly connected with a limiting ring, the annular weighing devices are installed below the limiting ring, and the bottom ends of the multiple annular weighing devices are fixedly connected with annular supporting plates; a side supporting plate is fixedly connected to one side of the annular supporting plate; raw materials are contained and weighed through a raw material feeding hopper, a limiting ring and an annular weighing device, preloading of most of the raw materials is achieved, the small-mass quantitative feeding mechanism and the annular weighing device are matched to accurately add missing parts, and rapid and accurate feeding of large-mass raw materials can be achieved in a low-cost mode.

The present invention discloses a controlled-release type polymeric ferric sulfate water treatment agent and its preparation method, belonging to the technical field of water treatment functional materials. The water treatment agent consists of polymeric ferric sulfate, an iron ion color indicator, a gel matrix, a cross-linking calcium agent, amino diatomaceous earth, a pore-forming agent and an inert filler. The preparation method includes: first preparing a network gel, then preparing soft materials, and finally obtaining the product through pill-making and drying. The present invention realizes the slow release and controllability of polymeric ferric sulfate, and the color indicator can directly reflect the consumption state of polymeric ferric sulfate, facilitating storage, transportation, dosing and recovery.

The utility model relates to the technical field of phase modifier equipment, in particular to a bearing lubricating structure for a phase modifier, which comprises a phase modifier body, a storage barrel, a timer and an electric telescopic rod, a top plate and an oil injection hole are arranged at the upper end of the phase modifier body, the storage barrel is positioned at the upper end of the top plate, and a bottom oil outlet pipe is inserted into the top plate; according to the structure, the electric telescopic rod is triggered through the timer, the injection rubber plug is pushed to feed lubricating oil in the material storage barrel into the bearing through the oil outlet pipe and the oil injection hole, automatic and accurate lubrication is achieved, and a fan-shaped rubber sealing piece in the oil outlet pipe guarantees the sealing performance; the annular seat in threaded connection is convenient to disassemble, assemble and maintain, the rubber pipe protects the oil injection hole to be clean, the problem that manual oil injection is inaccurate and not timely is effectively solved, equipment loss is reduced, and stability is improved.

The application belongs to the technical field of medicine, and relates to a medicine and instrument combination system for treating bromhidrosis by using a sclerosing agent and a multi-needle injection needle and application thereof. The medicine and instrument combination system is a medicine and instrument composition comprising a sclerosing agent and a disposable sterile injection needle. The sclerosing agent comprises one or more of polidocanol, lauromacrogol, sodium myristyl sulfate and sodium morrhuate. The disposable sterile injection needle is a nine-needle injection needle or a five-needle injection needle. The nine-needle injection needle or the five-needle injection needle has uniformly distributed needle heads and equal lengths of the needle heads. The medicine and instrument combination system can standardize injection of the sclerosing agent in the process of treating bromhidrosis, accurately control the dosage, control the curative effect, reduce adverse reactions and improve safety.

The utility model discloses a medicine bottle storer and a disposable medicine bin mechanism, the medicine bottle storer comprises a medicine bottle storer body, an anti-drop piece is arranged on the inner wall of the medicine bottle storer body, the disposable medicine bin mechanism comprises a medicine bottle storer and a medicine storage bottle installed in the medicine bottle storer, and the anti-drop piece is used for fixing the medicine storage bottle. According to the medicine bottle storage device and the disposable medicine bin mechanism, the medicine storage bottle is fixed in the medicine bottle storage device body through the anti-falling piece, so that the medicine bottle arranged in the medicine bottle storage device body can be prevented from falling off, and the medicine bottle and the medicine bottle storage device body are combined into a non-detachable whole; when the medicine bin is replaced, the medicine storage bottle and the medicine storage bottle are integrally replaced, the medicine storage bottle cannot fall off and be damaged, the positions of the medicine storage bottle and the medicine storage device are fixed, the replaced medicine storage bottle and the power assembly cannot generate position deviation, and the dosage is accurate during injection.

The invention discloses a sewage filtration treatment method, which belongs to the field of sewage treatment, and comprises a pretreatment stage, a composite membrane filtration stage, an advanced oxidation-adsorption coupling filtration stage, a deep purification stage and a resource recovery stage, and is characterized in that suspended particulate matters and part of organic matters are removed by adjusting the pH value of sewage and adding a modified diatomite adsorbent; carrying out pressure filtration through a three-stage composite membrane assembly to obtain a primary filtrate; then, a ferrous ion-sodium persulfate-ozone-ultraviolet synergistic oxidation process is adopted, coupling filtration is achieved in combination with a double-layer modified activated carbon filter layer, and then deep purification is completed through ion exchange and ultraviolet disinfection. According to the sewage filtering treatment method, adsorption, filtering and advanced oxidation technologies are efficiently coupled, the treatment effect and the resource utilization rate are considered, operation is easy and convenient, running is stable, the content of COD, suspended particulate matter and ionic pollutants in sewage can be effectively reduced, and the sewage filtering treatment method is suitable for various industrial and domestic sewage treatment scenes.

The present application relates to a kind of microneedle transdermal drug delivery technology, in particular, it relates to a kind of drug-loaded table transdermal nursing system.The drug-loaded table transdermal nursing system includes penetration device, penetration device includes penetration unit, and the penetration unit has substrate and the penetration micro-unit formed on substrate;It further includes delivery device;Delivery device includes delivery unit, and the delivery unit has drug-loading platform, and drug-loading surface of drug-loading platform is provided with drug coating, and drug coating has water-soluble and contains active ingredient;Delivery device can be delivered active ingredient by the reciprocating touch of the skin of specific area multiple times, and when the skin of specific area is touched each time, drug coating partially dissolves, and when the number of touch reaches specific number, drug coating completely dissolves.The nursing system is simple and convenient to operate, can realize the accurate, stable control of drug dosage, can be implemented uniform nursing to specific skin area, and can be suspended or discontinued at any time.

This invention belongs to the pharmaceutical field and relates to a human nerve growth factor composition. This invention provides a human nerve growth factor composition that can be administered via multiple routes, maintains good stability without cryopreservation, and does not require fixed accessories, simplifying operation and improving the convenience of medication.

The invention relates to the technical field of sewage treatment, in particular to a maleic anhydride wastewater treatment process which comprises the following steps: calculating according to a COD actual value of maleic anhydride wastewater to be treated and obtaining a COD calculated value; calculating and obtaining the adding amount of hydrogen peroxide according to the COD calculation value; calculating and obtaining the adding amount of ferrous sulfate according to the adding amount of hydrogen peroxide; adjusting the pH value of the maleic anhydride wastewater to be treated to 2.5-3; adding 20% of ferrous sulfate according to the calculated adding amount of the ferrous sulfate, and mixing the ferrous sulfate with the maleic anhydride wastewater to be treated; adding 30% of hydrogen peroxide according to the calculated adding amount of the hydrogen peroxide, and enabling the hydrogen peroxide to react with ferrous sulfate; adjusting the pH value of the effluent of the Fenton reaction to 4.5-5.5; and 10 ppm to 20 ppm of polyacrylamide is added. On the premise of ensuring the treatment effect, the dosage of two medicaments is reduced, and the cost is saved.

The invention belongs to the technical field of power plant indirect cooling circulating water treatment, and relates to an automatic control device and method for the quality of indirect cooling circulating water. Comprising an intelligent control cabinet, an alkali solution tank, an acid solution tank, a mixed ion exchanger, a condenser and an indirect cooling tower aluminum heat exchanger, a conductivity meter, a pH meter and a PLC (Programmable Logic Controller) are arranged in the intelligent control cabinet; the alkali solution tank is connected with a circulating water inlet pipeline; the acid solution tank is connected with a circulating water inlet pipeline; a pH electrode is arranged on the circulating water inlet pipeline; a conductivity electrode is arranged on the circulating water outlet pipeline; the condenser inlet is connected with the circulating water outlet pipeline; the condenser outlet is connected with the circulating water inlet pipeline; the circulating water outlet pipeline is connected with an inlet of the mixed ion exchanger; an outlet of the mixed ion exchanger is connected with an inlet of the condenser. According to the invention, accurate control of the water quality pH value and conductivity of the intercooling circulating water can be realized, so that system corrosion is effectively inhibited, the service life of equipment is prolonged, and safe and economical operation of a unit is guaranteed.

This utility model relates to the field of chemical production and processing technology, specifically an automatic dispersant dosing device. It includes a dispersant dosing unit, a reaction unit, and a washing unit. The dispersant dosing unit includes a dispersant hopper, with a dispersant tipping machine connected to the bottom of the hopper, and a dispersant screw conveyor connected to the bottom of the tipping machine. The reaction unit includes a sodium sulfide solution preparation tank and a dispersant solution preparation tank, with the upper part of the sodium sulfide solution preparation tank connected to the sodium sulfide solution tank via a pipeline. In this automatic dispersant dosing device, the dispersant hopper, dispersant tipping machine, and dispersant screw conveyor, in conjunction with a level gauge and a PLC automatic control system, achieve automatic and precise dispensing of the dispersant. The tipping machine shaft and rake teeth of the dispersant tipping machine effectively prevent material blockage, while the screw conveyor shaft and blades of the dispersant screw conveyor ensure stable material transport, avoiding errors and delays associated with manual dosing.

The utility model discloses a kind of high-concentration hemicellulose wastewater treatment systems, it is related to high-concentration hemicellulose wastewater treatment technical field, including the adjusting pool, fenton reaction pool, fenton sedimentation tank, multistage hydrolysis acidification pool and lifting pool connected in order, the adjusting pool water inlet is connected with high-concentration hemicellulose wastewater pipeline, non-ferrous wastewater pipeline and acidic wastewater pipeline, adjusting pool and fenton reaction pool between being provided with dispensing room, and ferrous sulfate storage tank, hydrogen peroxide storage tank and PAM storage tank are provided in dispensing room, ferrous sulfate storage tank and hydrogen peroxide storage tank are connected with fenton reaction pool water inlet respectively, and PAM storage tank is connected with fenton reaction pool, fenton reaction pool is also connected with alkali tank, the fenton sedimentation tank bottom is provided with sludge pump, and the lifting pool water outlet is connected with polymeric ferric sulfate storage tank. Through pre-fenton system combination multistage anaerobic treatment unit realizes the efficient decomposition of hemicellulose, lignin and other refractory substances, and cooperates subsequent advanced treatment to ensure that effluent COD is stable and up to standard.

The utility model discloses a tertiary fluorine removal device, including frame, in the frame from liquid flow direction setting has one -level fluorine removal unit, two -level fluorine removal unit and tertiary fluorine removal unit in proper order, and each level fluorine removal unit includes reaction area and fluorine removal sedimentation tank, wherein reaction area is located the water inlet side, and the fluorine removal sedimentation tank is located the water outlet side of reaction area, wherein the reaction area of first fluorine removal unit is communicated with the processing liquid collection jar through the pipeline of installing peristaltic pump. The utility model discloses can control in stages, multistage collaborative fluorine removal. Through the construction three -level gradient processing system, realize the different treatment under the pollutant concentration gradually decreasing step by step, and establish the reaction pool function modular configuration, and optimize the reagent dosing timing and mixing intensity.

This utility model discloses a precision dosing device, including a loading bracket. A longitudinal guide rail is installed on each of the top two sides of the loading bracket. A transverse support beam is arranged between the two longitudinal guide rails. A transverse linear module is installed at the bottom of the transverse support beam. A dosing mechanism is installed at the bottom of the slide of the transverse linear module. A ball screw is rotatably connected inside each of the two longitudinal guide rails. Slots are formed on the surfaces of both longitudinal guide rails. The two ends of the transverse support beam pass through the two slots and extend into the interior of the two longitudinal guide rails. This utility model, through the coordinated operation of the loading bracket, longitudinal guide rails, transverse support beam, transverse linear module, and ball screws, enables the dosing mechanism to move to any position in a two-dimensional plane above the wastewater treatment equipment. This allows the dosing mechanism to perform precise dosing at any designated location, greatly improving the flexibility of dosing and the treatment effect.

The invention belongs to the technical field of xanthoxylin application, and particularly discloses application of xanthoxylin WGX-50 in preparation of a medicine for treating pathogenic bacteria induced broiler inflammatory depletion diseases, and the xanthoxylin WGX-50 can be used as a poultry feed additive. In-vitro experiments show that 20 [mu] M of WGX-50 significantly alleviates the toxicity of LPS-induced chicken macrophages, and the cell activity is improved to 103.74%. In-vivo 21d broiler chicken feeding tests prove that by adding 100mg / kg WGX-50 into daily ration, a synergistic effect can be generated: the total antioxidant capacity of an organism is remarkably enhanced, and the level of pro-inflammatory cytokines is reduced; meanwhile, the average daily gain of the broiler chickens is remarkably increased, the feed-gain ratio is reduced, and the metabolic rate of key nutrient substances such as crude protein, calcium and phosphorus is increased. According to the invention, a brand new solution is provided for the WGX-50 in the aspects of precise prevention and control of poultry inflammatory depletion diseases and improvement of breeding benefits through a clear action mechanism and dosage.

This invention discloses a preparation process for a targeted drug delivery system based on the synergistic effect of Lamp2b and IMTP, comprising the following steps: constructing cells overexpressing the Lamp2b-IMTP fusion protein, culturing cells overexpressing the Lamp2b-IMTP fusion protein, thereby obtaining the targeted drug delivery system. The Lamp2b / IMTP synergistic targeted drug delivery system obtained by this invention allows for the specific accumulation of drugs in target cells, such as tumor cells, achieving precise drug delivery. The fundamental localization role of Lamp2b: Lamp2b is a naturally occurring transmembrane protein on the surface of exosomes, responsible for mediating the "initial recognition" between exosomes and recipient cells, ensuring that the delivery system, with exosomes as the core carrier, can be effectively recognized and bound by cells, avoiding rapid clearance by the body as a "foreign substance."

The invention is suitable for the technical field of medical instruments, and provides an intelligent chronic disease medicine dispensing system which comprises a medicine box supplying and transferring module, an automatic subpackaging module, an intelligent checking module, a packaging and identifying module and a finished product output module. According to the system, after empty medicine boxes are fed, each time of medicine is accurately subpackaged through the subpackaging machine according to a prescription, then automatic checking is carried out through the visual system, film covering sealing, laser marking and labeling are carried out after it is ensured that no error exists, and finally finished products are output. According to the system, automation and intelligentization of the whole process from prescription to sub-packaging, checking and packaging of chronic disease medicines are achieved, the medicine dispensing efficiency and accuracy are greatly improved, the labor cost and the error rate are reduced, and the medication safety and the management refinement level of patients are remarkably improved through integration of prescription checking and information tracing functions.

This invention discloses an orally disintegrating film formulation of BPC-157 sodium salt for treating acute alcohol poisoning and its preparation method. It relates to the field of acute alcohol poisoning treatment technology. The orally disintegrating film formulation comprises, by weight percentage: 0.1-5% BPC-157 sodium salt, 40-70% film-forming material, 5-15% plasticizer, 0.1-15% disintegrant, 0.1-15% sweetener, 0.1-10% salivary stimulant, and 1-5% other excipients. This invention prepares an orally disintegrating film formulation of BPC-157 sodium salt, utilizing its rapid dissolution characteristics and the pharmacological effects of BPC-157, providing a new option for treating acute alcohol poisoning. This formulation has advantages such as rapid onset of action, high bioavailability, and few side effects, and is expected to become an effective drug for treating acute alcohol poisoning.

The utility model relates to an agricultural planting water and fertilizer integration irrigation equipment, including mixing jar, filter water tank and parallel fertilizer barrel. Mixing jar top is equipped with feed pipe and water inlet pipe, bottom is equipped with liquid outlet pipe, jar inside transverse axis arrangement stirring rod, pole body evenly sets up stirring vane, and stirring rod is by drive motor through pulley and V type belt drive. Filter water tank is located below mixing jar, and top is connected through flange lower water pipe, and the box is equipped with annular laminated hollow cylindrical filter core, and the filter core center extends and connects the drain pipe of irrigation water pipe. Equipment integrated control box is based on water flowmeter data and preset proportion adjustment drive motor rotating speed, simultaneously through EC sensor and pH sensor real -time feedback, adopts fuzzy PID algorithm dynamic adjustment stirring intensity or acid -base pump flow. The utility model realizes that the liquid fertilizer is mixed evenly, is filtered efficiently and is controlled accurately in EC / pH precision closed loop, thoroughly puts an end to liquid fertilizer reflux, and is convenient for the user of farmer.

The utility model discloses an accurate potassium permanganate composite salt adding device, and belongs to the technical field of domestic water treatment. Comprising an adding tank, four adding inlet pipes are fixedly communicated with the front face of the adding tank, Y-shaped filters and manual maintenance ball valves are installed on the four adding inlet pipes, diaphragm pumps are fixedly communicated with the ends, away from the adding tank, of the four adding inlet pipes, frequency conversion controllers are installed on the four diaphragm pumps, and the frequency conversion controllers are connected with the Y-shaped filters and the manual maintenance ball valves. Four diaphragm pumps are fixedly connected to the upper surface of the feeding tank, water outlets of the four diaphragm pumps fixedly communicate with feeding outlet pipes, electromagnetic flow meters II and electromagnetic valves I are mounted on the four feeding outlet pipes, and a dissolving tank is fixedly connected to the upper surface of the feeding tank. Through cooperation of an external water supply pipe, an electromagnetic valve II and an electromagnetic flowmeter I, water added into the dissolving tank can be accurately controlled, so that a potassium permanganate composite salt dissolving solution with a specified concentration can be prepared.

The application discloses a reverse osmosis device, and belongs to the technical field of water treatment. The reverse osmosis device comprises a treatment barrel, a communication frame is fixedly installed at one end of the treatment barrel, a pouring box is rotatably installed on one side of the communication frame through an electric sliding block, a water storage cavity is formed in the pouring box, a center sleeve is fixedly arranged in the middle of the communication frame and connected with the pouring box, and the treatment barrel is divided into a pouring cavity and a treatment cavity through a pressurizing plate. The pressurizing plate can pressurize water flow when moving in the treatment barrel. Since impurities contained in water can easily cause the treatment equipment to be blocked and water flow to be slow during reverse osmosis treatment of the water, the water flow can be effectively prevented from flowing slowly due to blockage through pressurization of the water flow. In addition, the impurities in the water film during water treatment can be dredged, and the effect of the reverse osmosis device on water treatment is prevented from being poor. The cleaning part can clean dirt in the treatment barrel, and simultaneously drive the dosing part to automatically and periodically add the medicament in the treatment barrel in a quantitative manner.

The invention discloses a polyvinylpyrrolidone grafted poly (dimethylaminoethyl methacrylate) chitosan nanofiber as well as a preparation method and application of the polyvinylpyrrolidone grafted poly (dimethylaminoethyl methacrylate) chitosan nanofiber. The preparation method comprises the following steps: modifying PVP and PDMAEMA on chitosan through an atom transfer radical polymerization method, dissolving in an acetic acid solution, and performing high-voltage electrostatic spinning; completely soaking the obtained nanofibers in a foaming solution, cleaning the foamed nanofibers after stabilization, then carrying out bubble removal treatment, freezing and freeze-drying to obtain porous nanofibers; and dissolving musk ketone in absolute ethyl alcohol, soaking the porous nanofiber in the musk ketone solution, and after the absolute ethyl alcohol is completely volatilized, obtaining the product. The invention provides an intelligent nanofiber dressing capable of actively sensing and responding to diabetes wound microenvironment change (pH). The dressing can realize on-demand release of drugs, synergistically manage wound exudate, remarkably improve blood circulation and antibacterial effects, and promote healing of diabetic wounds.

The utility model relates to pH adjusting equipment technical field, concretely is a kind of PH adjusting device for semiconductor pure wastewater treatment system, including inverted round table type's wastewater pH adjusting box, box support base, swing type stirring assembly and power mechanism, wastewater pH adjusting box bottom is rotatably installed on box support base, top is equipped with L type swing bar and stirring vane, drives worm and worm gear mechanism by main servo motor, makes L type swing bar realize up and down swing and left and right rotation, simultaneously drives adjusting box rotation, improves stirring uniformity and energy utilization rate. The utility model solves the problem that the prior art stirring uniformity is insufficient, and energy utilization rate is low, especially applicable to the treatment of semiconductor high-purity wastewater.

The utility model provides high-precision liquid preparation equipment and a high-precision liquid preparation system, the high-precision liquid preparation equipment comprises an equipment main body, a first three-way valve and a second three-way valve which are arranged on the equipment main body, the first three-way valve is communicated with a first liquid inlet pipeline between a first stock solution tank and a liquid preparation container, and the second three-way valve is communicated with a second liquid inlet pipeline between a second stock solution tank and a liquid preparation container; an outlet of the first three-way valve is communicated with the waste discharge pipeline or the liquid preparation container, so that the first liquid inlet pipeline is communicated with the waste discharge pipeline or the liquid preparation container; the second three-way valve is communicated with the second liquid inlet pipeline between the second stock solution tank and the liquid preparation container, and an outlet of the second three-way valve is communicated with the waste discharge pipeline or the liquid preparation container, so that the second liquid inlet pipeline is communicated with the waste discharge pipeline or the liquid preparation container; when a new mother solution is switched, the first three-way valve and the second three-way valve are controlled, the new mother solution is used for ejecting out the last mother solution remaining in the first liquid inlet pipeline or the second liquid inlet pipeline and discharging waste, it is guaranteed that each mother solution can be conveyed to the solution preparation container in an accurate amount for proportioning, and solution preparation is more accurate.

The invention discloses a biomass acid desulfurization synergist as well as a preparation method and application thereof. The biomass acid desulfurization synergist comprises the following components in percentage by mass: 30-60% of a biomass acid active component, 10-30% of an alkalinity supplement, 5-15% of a metal ion chelating agent, 3-10% of a wetting dispersant and the balance of water. The biomass acid desulfurization synergist can supplement alkalinity in thermodynamics, can reinforce the mass transfer process in dynamics, can enhance the system stability and impact load resistance, and has important industrial application value.

The application discloses a nystatin solution and a preparation method and application thereof, which is prepared from the following raw materials in parts by weight: nystatin 20-50 parts, dimethyl sulfoxide 110-220 parts, preservative 1.5-2.0 parts, antioxidant 0.5-1 part and 1,2-propylene glycol 737-880 parts. The application creatively adopts a composite solvent system of dimethyl sulfoxide and propylene glycol, utilizes the extremely strong dissolving capacity of dimethyl sulfoxide and the auxiliary solubilization and dilution effect of propylene glycol, and produces a significant synergistic effect. The system can completely dissolve up to 50 parts by weight of nystatin, forms a clear, transparent and uniform stable solution, fundamentally solves the technical bottleneck that nystatin cannot be prepared into a high-content solution due to poor water solubility, and lays a foundation for poultry group water medication.

This application belongs to the field of expansive concrete technology and discloses a batching device for expansive concrete, including a base plate, a mounting frame, a hopper, a mounting plate, a support plate, a vertical plate, and a sliding plate. A circular opening is provided on one side of the sliding plate, and a receiving tube is provided on the bottom surface of the sliding plate corresponding to the circular opening. A bottom cover that fits with the lower end of the receiving tube is hinged to the receiving tube. A support frame is provided on the mounting plate, and a storage box is provided on the support frame. A discharge pipe is connected to the bottom of the storage box, and the lower end of the discharge pipe slides in contact with the top surface of the sliding plate. The expansive agent in the circular opening is flush with the top surface of the sliding plate. When the receiving tube is completely away from the area directly above the support plate, the bottom cover loses its restraint and rotates downwards under gravity, causing the lower end of the receiving tube to lose its restraint and fall into the hopper, subsequently reaching the concrete mixer. This ensures that a fixed amount of expansive agent is delivered to the hopper with each movement of the sliding plate, guaranteeing a consistent dosage of expansive agent added to the concrete mixer each time.