21results about How to "Control granularity" patented technology

The invention relates to the technical field of stripping liquids, and discloses a water-based photoresist stripping liquid for the AMOLED (Active Matrix / Organic Light Emitting Diode) field, which comprises the following components in percentage by mass: 15-20% of 2, 2-dimethylolpropionic acid, 25-30% of diethylene glycol monobutyl ether, 8-10% of diethylene glycol monomethyl ether, 5-8% of diethanol amine, 1.5-3% of a metal protective agent, 0.5-1% of a surfactant and the balance of pure water. According to the stripping liquid, raw materials including 2, 2-dimethylolpropionic acid, diethylene glycol monomethyl ether and diethylene glycol monobutyl ether are subjected to double-tower distillation, metal ions are reduced to 100 ppt, the pollution possibility is eliminated, and metal impurities and granularity in the stripping liquid production process are controlled. According to the invention, the proper metal protective agent and surfactant are adopted, so that the metal silver is protected in the stripping process, the surface tension is reduced, the permeability of the solution is improved, and the problem of photoresist residue is solved.

The invention provides a Milsartan potassium capsule and a preparation method thereof, the Milsartan potassium capsule is prepared by filling a Milsartan potassium micro-tablet into a hollow capsule, the compliance of a patient is improved, and compared with a common tablet, the micro-tablet can improve the dissolution rate and increase the contact area with gastrointestinal mucosa after oral administration, so that the bioavailability of a medicine can be improved, and the bioavailability of the medicine is improved. In addition, the micro-tablets are filled into hollow capsules, so that the exposure of the tablets can be reduced, the influence of moisture can be reduced, and the stability of the medicines can be improved.

The invention relates to a high-entropy oxide wave-absorbing ceramic powder material as well as a preparation method and application thereof, belongs to the technical field of electromagnetic wave absorbing materials, and solves the problems of poor high-temperature resistance and oxidation resistance and low absorption efficiency on low-frequency wave bands of an existing electromagnetic wave absorbing material. The high-entropy oxide ceramic material has a perovskite structure, the molecular structure is ABO3, A comprises La and Sr, and B is at least five elements of Cr, Ni, Mn, Fe, Co, Zr, Hf and Ti. According to the invention, the high-entropy oxide is combined with the perovskite structure, the electromagnetic function of the high-entropy oxide ceramic material is accurately regulated and controlled, and effective absorption of low-frequency electromagnetic waves is realized; the material has oxidation resistance and thermal stability under a high-temperature condition, and excellent electromagnetic function strength of the material at a high temperature is maintained. According to the high-entropy oxide ceramic powder material, the range of an electromagnetic wave absorbing material is widened, the environmental adaptability is improved, and higher requirements of development of a communication technology on the electromagnetic wave absorbing material are met.

The present invention provides a method for preparing highly dispersed metal powder and a device for preparing highly dispersed metal powder. The method comprises the steps of (1) adding a base liquid into a synthesis reactor, and performing internal and external circulation of the synthesis reactor through an external circulation dispersion device connected to the synthesis reactor to achieve a stable circulation; (2) after the stable circulation meets a predetermined requirement, continuously adding an oxidizing liquid and a reducing liquid into the synthesis reactor to mix with the base liquid to form a reaction liquid, and continuously passing the reaction liquid through the external circulation dispersion device for forced dispersion, and then feeding it into the synthesis reactor; (3) performing sampling analysis and testing during the synthesis reaction, and when the particle size of the metal powder generated by the synthesis reaction meets the requirement, stopping the addition of the oxidizing liquid and the reducing liquid to stop the synthesis reaction; and (4) discharging the reaction liquid from the synthesis reactor, performing solid-liquid separation, cleaning, post-treatment, and drying to obtain highly dispersed metal powder.

The utility model provides a device for generating coke breeze for blast furnace injection by pyrolyzing feed coal, which comprises a feeding unit, a pyrolyzing and separating unit, a heat carrier heating unit and a blast furnace injection separating unit which are sequentially connected, the pyrolysis and separation unit is divided into a pyrolysis reaction area and a gas-solid separation area, a solid outlet of the gas-solid separation area is connected with the heat carrier heating unit, an upper outlet of the heat carrier heating unit is connected with the blast furnace injection separation unit, and the blast furnace injection separation unit is used for extracting coke breeze for blast furnace injection. Through the arrangement of the washing and grinding device, the granularity of feed coal is controlled, the ash content in the feed coal is reduced, coke breeze is heated after pyrolytic reaction, the ash content of the coke breeze is reduced, and the granularity of the coke breeze is controlled through separation, so that the coke breeze can meet the use requirements of blast furnace injection materials, and the utilization value of low-rank coal and coke breeze products is improved; the device is simple in structure, easy and convenient to operate, low in cost, high in economic benefit and wide in application range.

The invention provides hydrogen storage alloy pulverizing equipment which comprises a feeding system, a material grinding system and a discharging pipeline, the feeding system is fixed to the top face of a rack table top through a fixing support, the material grinding system comprises a material grinding rolling barrel, a shell and a material grinding motor, the material grinding rolling barrel is installed in the shell in a crossing mode, the shell is fixed to the top face of the rack table top, and the material grinding motor is arranged in the shell. A feeding port of the grinding roller is communicated with a feeding pipeline of the feeding system, and a discharging pipeline is arranged on the bottom surface of the table board of the rack and is communicated with the interior of the shell. The invention further provides a hydrogen storage alloy powder preparation method. The hydrogen storage alloy powder preparation equipment is simple in structure and convenient to use; according to the hydrogen storage alloy powder preparation method, the hydrogen storage alloy powder preparation equipment is adopted for powder preparation, the method is simple and controllable, the hydrogen absorption and hydrogen desorption principle of the hydrogen storage alloy is utilized, the activation speed of the hydrogen storage alloy can be increased, and therefore the activation performance of the hydrogen storage alloy powder is improved.

The invention discloses a touch track recognition method and device, equipment and a storage medium, and relates to the technical field of computers. The method comprises the following steps: determining a target window duration of a sliding window according to a current use parameter of the mobile smart screen, and inputting a touch sampling point sequence into the sliding window; generating an initial trajectory form through clustering based on a plurality of continuous window data, and judging whether the initial trajectory form has jitter or not by comparing the actual length-width ratio of the initial trajectory form with a length-width ratio threshold value; determining a target control point corresponding to the initial trajectory form by using a control point determination rule corresponding to the jitter judgment result, and determining a target smoothing coefficient according to the current height of the mobile smart screen; and smoothing the target control point by using the target smoothing coefficient. By integrating the influence of the height of the mobile smart screen on touch track recognition, a touch track filtering scheme of the mobile smart screen at different heights is dynamically adapted without depending on a hardware sensor, and the accuracy of touch track recognition is improved.

The invention provides a method for reducing top-charging coke M10, and relates to the technical field of coke oven production. Comprising the following steps: S1, blending high-quality coking coal, 1 / 3 coking coal, fat coal, gas-fat coal and lean coal; s2, adding the mixed coal from the furnace top, and ensuring that the temperature of the carbonization chamber is uniformly distributed between 950 DEG C and 1050 DEG C; s3, after coke is formed in the furnace, quenching the top-loading coke by using a dry quenching process; the top-loading coke M10 is reduced through the steps of optimizing the coal blending structure, controlling the particle size of the blended coal, improving the fluidity of the blended coal, accurately controlling the heating temperature, adopting the dry quenching process and the like, so that the method is better suitable for blast furnace production.

The invention discloses a tosufloxacin tosylate antibacterial external preparation and a preparation method thereof. According to the invention, the raw material tosufloxacin mesylate forms the phospholipid complex to improve the solubility of the tosufloxacin mesylate in the external preparation, and the particle size of the external preparation is controlled (the maximum particle size is less than 100 [mu] m, and the release rate of in-vitro release is good) by investigating different matrix dispersions (the phospholipid complex is difficult to disperse well in a single matrix and disperse well in three matrixes); the dispersibility of the phospholipid complex is improved, the viscosity is reduced, and the dissolution of the drug is improved (the in-vitro permeation drug release amount is greater than 25 mu g / cm < 2 > and can be kept for 24 hours). The antibacterial external preparation is an ointment, can be used for bacterial infection of wound surfaces such as skin cut wounds, bruises, small-area burns, surgical wounds and the like or infection of ulcer surfaces, and has better stability and better treatment effect.

The invention discloses a continuous production process of liquid lithium hexafluorophosphate, and relates to the technical field of lithium ion battery electrolyte. The whole process is carried out under a nitrogen sealing condition, liquid anhydrous hydrogen fluoride and liquid chlorine are introduced into a microchannel mixer for mixing, the mixture and phosphorus trichloride liquid are introduced into a primary tubular reactor for reaction, generated gas is introduced into a gas-liquid separator and a condenser to obtain phosphorus pentafluoride gas, the phosphorus pentafluoride gas is continuously introduced into a secondary tubular reactor, and the phosphorus pentafluoride gas is continuously introduced into a secondary tubular reactor. Reacting with a lithium fluoride solution to generate an unsaturated solution of lithium hexafluorophosphate; and adsorbing the generated lithium hexafluorophosphate solution by trifluoromethyl hydrogen type macroporous cation resin, filtering to remove the trifluoromethyl hydrogen type macroporous cation resin, crystallizing and drying the filtrate, and preparing the dried lithium hexafluorophosphate crystal into liquid lithium hexafluorophosphate. According to the process, the continuous production of the liquid lithium hexafluorophosphate is realized, the safety in the production process is improved, the product quality is effectively improved, and the policy requirements are met.

The application discloses a kind of zeolite molecular sieve for removing hexavalent chromium in wastewater and its preparation method, which comprises the following steps: mixing solution and stirring: all raw materials are placed into polytetrafluoroethylene lined stainless steel autoclave, then the polytetrafluoroethylene lined stainless steel autoclave is placed into ultrasonic cleaning machine for ultrasonic stirring, and slowly shakes during stirring process;Synthesis reaction: after stirring, the polytetrafluoroethylene lined stainless steel autoclave is tightened, the polytetrafluoroethylene lined stainless steel autoclave is placed into thermostat for constant temperature reaction;Sample removal: after constant temperature, the polytetrafluoroethylene lined stainless steel autoclave is taken out, the cover is rotated after cooling, the white lining is taken out, and is dried, to obtain molecular sieve.The application can solve the problems of complex process flow, huge energy consumption and inconvenient operation in the synthesis technology of existing molecular sieve.

The present invention belongs to the technical field of quartz sand crushing and processing, and relates to a quartz sand processing crushing and grinding device, including a mounting seat, a processing bin, an air guide cylinder, a discharging frame, a driving motor, a rotating shaft, an isolation plate, an air intake ring and an air injection pipe, wherein the mounting seat is connected to the processing bin, the middle of the top of the processing bin is connected to the air guide cylinder, the discharging frame is connected to the air guide cylinder, the top of the air guide cylinder is installed with a driving motor, the output shaft of the driving motor is connected to a rotating shaft, the lower part of the processing bin is connected to an air intake ring, the air intake ring is rotatably connected to an isolation plate, the rotating shaft is connected to the isolation plate, and the processing bin is connected to an air injection pipe. In the process of discharging the material, the present invention discharges the material by blowing the material with gas, and then the strength of the airflow can be controlled to control the particle size of the discharged quartz sand powder, so as to ensure the fineness of the discharged powder and the accuracy of the subsequent processed finished product.

The invention provides an atomizer and an atomizing device. The atomizer comprises an atomizing nozzle and a heater. Wherein the atomizing nozzle is used for atomizing an aerosol atomizing substrate and spraying airflow containing aerosol; the heater is used for heating airflow sprayed by the atomizing nozzle; the heater comprises a plurality of grid heating pieces, and each grid heating piece is provided with a plurality of through holes to form a grid for airflow to pass through. According to the embodiment of the invention, the grid heating element can be combined through different apertures, so that the particle size of liquid drop particles generated by primary atomization of the atomizing nozzle can be controlled, and the particle size of sucked smoke can be controlled; a large heating space can be formed by the plurality of grid heating pieces, so that liquid drops generated by primary atomization of the atomizing nozzle are fully heated, and the space atomizing capacity is high; besides, the user can freely set the number and the arrangement mode of the grid heating pieces according to own preferences, so that the granularity, the taste, the mouthfeel and the like of aerosol generated by atomization are controlled, and the use requirements of different users are met.

The invention discloses a preparation method of silver powder, which comprises the following steps: preparing a silver-containing stock solution in a silver-containing stock solution preparation tank, carrying out chemical reduction reaction in an atomization reaction kettle to form a silver powder precursor solution, conveying atomized feed to a spray drying tower through an electrostatic field generated by an electrode, and carrying out low-temperature electrostatic spray drying, and finally, collecting the silver powder by using a rotary particle collector. The silver powder prepared by the method has the advantages of uniform particles, high purity, high production efficiency and the like.

The utility model discloses a modular crushing device, relates to the technical field of crushing equipment, and aims to solve the problem that the crushing space of the conventional double-geared roller screening crusher is fixed and is easy to cause material blockage. The modular crushing device comprises a platform, a crushing opening is formed in the platform, two bases are arranged in the crushing opening, and the two bases are arranged on the platform; a crushing beam is installed on the two bases, a plurality of crushing teeth are detachably connected to the crushing beam, and the crushing teeth are arranged in the length direction of the crushing beam.

The utility model relates to the technical field of grinding devices, in particular to an adjustable grinding device. According to the technical scheme, the device comprises a machine body, a second motor, a second grinding roller, mounting plates and a brush plate, the second grinding roller and a first grinding roller are arranged in the machine body, the outer walls of the two ends of the second grinding roller are sleeved with mounting sleeves, the mounting plates are arranged in the front end and the rear end of the machine body, sliding grooves are formed in the mounting plates, and sliding blocks are arranged at the lower ends of the mounting sleeves; a hydraulic rod is arranged at one end of the machine body, a brush plate is arranged in the machine body, brushes are arranged at equal intervals at the upper end of the brush plate, the brushes correspond to the lower end of the second grinding roller and the lower end of the first grinding roller, and springs distributed at equal intervals are arranged at the lower end of the brush plate. According to the utility model, the adjusting device is arranged on the grinding roller II to adjust the gap between the two grinding rollers, so that the grinding requirements of different material processing technologies and granularity specifications are met, the use is flexible, and the adaptability is high.

The present invention provides a method for preparing metal powder by using a high-dispersion synthesis reactor and a high-dispersion metal powder preparation device. The method comprises: adding a base liquid into a circulation regulating reactor, and performing internal and external circulation through a high-dispersion synthesis reactor connected to the circulation regulating reactor to achieve a stable circulation; after the stable circulation meets the predetermined requirements, continuously adding an oxidizing liquid and a reducing liquid into the high-dispersion synthesis reactor for a synthesis reaction, during the synthesis reaction, the reaction liquid is continuously sent into the high-dispersion synthesis reactor for forced dispersion, and performs a synthesis reaction therein with the oxidizing liquid and reducing liquid that are continuously newly added to the high-dispersion synthesis reactor; sampling analysis and testing are performed, and when the particle size of the metal powder generated by the synthesis reaction meets the requirements, the addition of the oxidizing liquid and the reducing liquid is stopped to stop the synthesis reaction; after the reaction liquid is discharged from the circulation regulating reactor, solid-liquid separation, cleaning, post-treatment, and drying are performed to obtain a highly dispersed metal powder.

The utility model discloses an asphalt mixture production system, which comprises a first wet grinding device, a second wet grinding device, a third wet grinding device and a fourth wet grinding device, the second wet grinding equipment is used for grinding and mixing the coarse aggregate and the asphalt into a second mixture comprising the fine aggregate and the asphalt; the third wet grinding equipment is used for grinding and mixing the fine aggregate and the asphalt into a third mixture comprising fine filler and the asphalt; and the mixing equipment is used for mixing the asphalt, the additive, the first mixture output by the first wet grinding equipment, the second mixture output by the second wet grinding equipment and the third mixture output by the third wet grinding equipment to obtain the asphalt mixture. The asphalt mixture production system is simple in structure, low in equipment investment and operation cost, more energy-saving and environment-friendly, capable of remarkably improving the mixing effect of the asphalt mixture and improving the pavement construction quality and efficiency, and high in practicability.

The utility model relates to the technical field of honey processing production equipment, and provides honey extraction processing production equipment which comprises a box body, one side of the box body is fixedly connected with an installation frame, the top end of the box body is fixedly connected with a feeding hopper, and a vibrating screen assembly is arranged on the upper portion in the box body. A material guide pipe is fixedly connected to the lower part in the box body, a reaction kettle is fixedly connected to the bottom end of the box body, supporting columns are fixedly connected to four corners of the bottom end of the box body, a stirring and wall scraping assembly is arranged in the reaction kettle, a shell is fixedly connected to the bottom end of the reaction kettle, and a discharge pipe is mounted on one side of the reaction kettle. According to the technical scheme, honey is filtered through the vibrating screen assembly, and the problem that when honey is directly filtered through a filtering layer, filtering holes are possibly blocked by solids, and consequently the processing efficiency is reduced is solved.

The utility model relates to the technical field of waste treatment equipment, which comprises a drying drum which is a horizontally arranged sealed drum body, a spiral conveying blade is arranged on the inner wall of the drying drum, a feed port is arranged at one end of the drum body, and a discharge port is arranged at the other end of the drum body; the crushing mechanism comprises a main shaft and a plurality of groups of crushing blades mounted on the main shaft, and the main shaft penetrates through the drying roller and is driven by a motor; the hot air supply system comprises a hot air inlet, a hot air outlet and a circulating fan, the hot air inlet is located at the discharging end of the drying roller, the waste drying and crushing integrated equipment is disclosed, the drying process and the crushing process are integrated into one equipment, the material carrying frequency can be reduced, and the production efficiency is improved. A countercurrent hot air circulation system is adopted, heat energy can be effectively utilized, heat efficiency is improved, and energy consumption is reduced. The first screen can control the granularity of the crushed materials, and it is ensured that products meet the quality requirement.

The present application belongs to the technical field of sodium bicarbonate preparation, and particularly relates to a method for regulating the crystallization process of sodium bicarbonate. The method comprises driving the crystal slurry to circulate in the crystallizer, using the difference in settling velocity to gather the crystals with a particle size of 150-300 microns in the settling zone at the bottom of the reactor; arranging an electrode array in the settling zone, applying a high-frequency signal of 10 to 100 kHz to reconstruct the spatial impedance distribution matrix; calculating the anisotropy coefficient and the impedance gradient modulus; discretizing the impedance distribution matrix, establishing the mapping relationship between the physical coordinates and the nozzle group matrix at the bottom of the tank, and matching the target nozzle group trigger instruction of the abnormal material; when the needle-shaped crystal or agglomerate determination condition is met, the control unit determines the trigger instruction according to S3, and injects high-pressure mother liquor into the nozzle group at the corresponding position. The abnormal material is subjected to fixed-point physical shearing or forced deagglomeration, so as to realize the regulation of the crystal particle size and morphology.