107results about How to "Slow flow rate" patented technology

The present invention relates to a method for preparing high-viscosity PBT through chain extension modification with a polymer, wherein PBT is subjected to chain extension by selecting a chain extender containing a functional group capable of reacting with carboxyl and hydroxyl. According to the present invention, the used chain extender reacts with the carboxyl and hydroxyl prepolymer to diffuseand extend the molecular chain, such that the curing molding of the resin is achieved; in the polyester processing process, the molecular weight is decreased and the number of the terminal carboxyl isincreased due to the thermal degradation and the hydrolysis, such that the mechanical performance and the chemical performance of the polymer are reduced; the bifunctional small molecule compounds are added under the reactive blending condition, contain the functional groups capable of easily reacting with carboxyl, hydroxyl and the like, and can directly react with low molecular weight oligomers, such that the bridging is formed between the two polymer chains so as to significantly increase the molecular weight, improve the viscosity of the system, and reduce the terminal carboxyl content; and the polyester chain extension comprises: selecting a compound, and carrying out addition on the compound and hydroxyl or carboxyl.

The invention provides a virtualization scene flow migration method based on a network function. The method comprises the following steps of deploying a source flow migration processing unit and a target flow processing unit at a source network function place and a target network function place respectively, and arranging a two-byte label in each packet header of each data packet through the source flow migration processing unit and network exchange equipment so as to tab the data packet into four types, wherein the four types contain a normal type, an in-fly type, a last in-fly type and a redirect type; the target flow migration processing unit uses a classifier based on the label to classify the normal type of the data packets, the in-fly type of the data packets, the last in-fly type of the data packets and the redirect type of the data packets; deploying state machines in the flow migration processing unit and recording a current migration state, wherein a source state machine tabs and forwards the data packets according to the migration state; and a target state machine places the four types of the data packets in default buffer memory, in-fly annular buffer memory and redirect annular buffer memory in the target flow processing unit according to a migration state and a packet processing rule and finally delivers to the target network function place through the default buffer memory.

The invention discloses eye drops containing vitamin E derivatives and a preparation method thereof. The eye drops comprise main components of water soluble vitamin E derivatives, a thickening agent, a pH regulator, an isotonic agent and water for injection. The eye drops are mainly used for treating dry eye syndrome, and active pharmacological components can be added according to the need and are used for adjuvant treatment of cataract, retinopathy, macular degeneration, keratitis, conjunctivitis and other various ocular diseases. The eye drops have good effects of moisturizing and lubricating, have antioxidation function, can inhibit lipid peroxide reactions in eyes, have effects of expanding peripheral blood vessels, improving blood circulation, protecting, and accelerating injuries to heal, and have good curative effects on various ocular diseases.

The invention discloses a mixing material of high-density polyethylene, polypropylene and a triatomic ethylene-propylene copolymer and a preparation method thereof. The preparation method adopts the following technological steps: firstly, pouring high-density polyethylene granules and polypropylene granules into a high-speed mixing mill to be mixed together; extruding after mixing to obtain mixed initial granules; and then mixing the mixed initial granules with the triatomic ethylene-propylene copolymer; after the mixing, extruding by a bidirectional screw extruder to obtain strip-shaped mixed material; cooling and cutting the mixing material into mixed granules. The mixing material has high impact strength and tensile strength, low flow rate, and the like; and in addition, the preparation method is simple and easy to operate.

The invention belongs to the technical field of food refrigeration, in particular to a packaging box for steak fresh keeping and refrigeration. The packaging box comprises a box body, a box cover, a rectangular air bag, clamping modules and a supporting module. The clamping modules and the supporting module are arranged inside the box body, the bottom of the box body is provided with a first cavity, the inner side of the first cavity is provided with a water absorption module, the bottom ends of the two clamping modules are elastically connected with the two sides of the supporting module correspondingly, the box body is covered with the box cover, the rectangular air bag is arranged inside the box cover, a valve is arranged on the box cover, the valve communicates with the rectangular airbag through a conduit, two first telescopic air bags communicate with the positions, corresponding the two clamping modules, of the bottom of the rectangular air bag, and the bottoms of the two firsttelescopic air bags are in contact with the tops of the two clamping modules correspondingly. The box body is sealed through the rectangular air bag, the box body refrigeration efficiency is improved, melted ice water is reused, and box body heat insulation efficiency is improved.

The invention discloses a water filtration sand remover. The water filtration sand remover comprises a shell, a hydrocyclone and an oblique partition plate assembly. A water outlet is formed in the upper end of the shell, a water inlet is formed in the lower end of the shell, and a sand removal opening is formed in the bottom of the shell. The oblique partition plate assembly comprises a plurality of oblique partition plates which are arranged in an inner cavity of the shell at intervals from top to bottom. Every two adjacent oblique partition plates are staggered to tilt downwards, the periphery of each oblique partition plate is connected with the inner wall of the shell in a sealing mode, and a notch is formed in the low end of each oblique partition plate. The hydrocyclone comprises a spindle and a motor. The spindle is arranged in the inner cavity of the shell, and the motor is fixed to the top of the shell. The central axis of the spindle coincides with the central axis of the shell. Each oblique partition plate penetrates through the top of the spindle and extends out of the top of the shell to be connected with the motor, and the bottom of the spindle stretches out of the sand removal opening. The water filtration sand remover has the advantages that the separating effect is good, the separating efficiency is high and the service life of a filter screen can be prolonged.

The invention discloses a dust removal and desulfurizing system for treating industrial waste gas by using viscous absorption liquid and a treatment method. The dust removal and desulfurizing system comprises a dust removal and desulfurizing container, a viscous absorption liquid circulating tower, an industrial waste gas source and a gas receiving tower, the viscous absorption liquid circulatingtower circularly supplies the viscous absorption liquid to the dust removal and desulfurizing container, the industrial waste gas source conveys industrial waste gas to the dust removal and desulfurizing container, and the industrial waste gas subjected to dust removal and desulfurizing is received by the gas receiving tower; the dust removal and desulfurizing container is provided with a cylindrical dust removal and desulfurizing cavity and an annular liquid distribution cavity from inside to outside, the cylindrical dust removal and desulfurizing cavity is inserted into a vertical pipe, thevertical pipe is provided with a gas distribution stirring assembly and an elastic spiral choked flow blade assembly from top to bottom, and viscous absorption liquid is stirred while the gas distribution stirring assembly distributes gas; and the elastic spiral choked flow blade assembly conveys the viscous absorption liquid downwards to chock flow of industrial waste gas and generates vertical elastic vibration under flow impact of the viscous absorption liquid at the same time. The dust removal and desulfurizing system integrates industrial waste gas dedusting and desulfurizing, and dedusting and desulfurizing are thorough and efficient.

The invention provides a boiler flue gas waste heat recycling device which comprises a recycling room and a boiler. The recycling room is arranged on the left side of the boiler. A flue gas inlet pipeis arranged on the right side of the recycling room. A flue gas discharging port is formed in the right side of the boiler. The flue gas inlet pipe is connected with the flue gas discharging port. Aflue gas discharging pipe is arranged on the left side of the recycling room. A water inlet pipe is arranged above the left side of the recycling room. A water outlet pipe is arranged above the rightside of the recycling room. A curved water pipe is arranged in the recycling room. The left end of the curved water pipe is connected with the water inlet pipe, and the right end of the curved water pipe is connected with the water outlet pipe. A heat pipe is arranged on the surface of the curved water pipe. A water inlet is formed in the left top side of the boiler and is connected with the wateroutlet pipe. By means of the boiler flue gas waste heat recycling device, the heat pipe is used for absorbing and transmitting heat in flue gas into the curved water pip to heat cold water in the curved water pipe, heated water enters the boiler from the water inlet through the water outlet pipe, the working efficiency of the boiler is improved, and resources are saved.

The invention relates to the field of evaporator equipment. The invention further discloses a scraper type film evaporator comprising a heating casing pipe, an evaporation casing pipe, a secondary treatment box, a transmission shaft and a distributing device, wherein the evaporation casing pipe is arranged in the heating casing pipe, the secondary treatment box is arranged at the top of the heating casing pipe, a rotatable transmission shaft is arranged in the middle of an inner cavity of the evaporation casing pipe of the heating casing pipe, and the top end of the transmission shaft is fixedly sleeved with a rotary joint located above the secondary treatment box. According to the scraper type film evaporator, the transmission shaft, a stirring mechanism, a fixed through pipe, a sealing plug, a linkage shaft, a stirring shaft and a flow guide mechanism are designed; during use, evaporated dry steam is sprayed out obliquely upwards from the bottom of the evaporation casing pipe, so that the down-flow rate of materials is reduced to a certain extent, the evaporation effect of the materials is improved, meanwhile, the dry steam heats the materials on the inner side, the heating effect is further improved, and sufficient heating of the materials is facilitated.

The invention discloses a solid-gas microchannel reactor. The solid-gas microchannel reactor comprises a casing detachably connected with a microchannel for conveying a gas; a reaction tube traversingthrough the casing and provided with a plurality of ventilation openings; a catalysis structure arranged on the reaction tube and comprising a solid phase drug; a plurality of drainage structures forguiding the gas to move from the middle part of the reaction tube towards the catalysis structure, contact with the inner wall of the casing and afresh traverse through the catalysis structure spirally; and a filtering structure cooperating with the casing to filter the gas not entering the reaction tube in order to remove solid impurities contained in the gas. The drainage structures are arranged, so the gas can traverse through the catalysis structure through the drainage structures in order to carry out a catalysis reaction, thereby it is ensured that the whole gas can be effectively catalytically activated, the gas activation energy is improved, the subsequent reaction efficiency is accelerated, the reaction time is shortened, and the gas treatment efficiency is improved.

The invention relates to the field of washing powder equipment, in particular to a steam-pipe rotatory dryer. The steam-pipe rotatory dryer comprises an end plate which is connected with a middle circle heat exchange pipe. The lower side face of the middle circle heat exchange pipe is connected with a connecting pipe which is connected with a ring pipe. The ring pipe is connected with an arc-shaped pipe which is connected with an inner circle heat exchange pipe. The inner circle heat exchange pipe is connected with the arc-shaped pipe, and the ring pipe plays a transition role, so that cracks caused by gas expansion are prevented; furthermore, the inner circle heat exchange pipe is gathered through the connecting pipe to be connected to the middle circle heat exchange pipe, and therefore fatigue damage to the connecting part of a non-condensable gas exhaust part and the middle circle heat exchange pipe is avoided, and in the operation process of the dryer, stress of a welding line part connected with the middle circle heat exchange pipe is reduced.

The invention discloses a sisal fiber reinforcing starch environment-friendly degradable garbage bag. The sisal fiber reinforcing starch environment-friendly degradable garbage bag is prepared from, by weight, 40 parts of starch, 60 parts of sisal fiber, 80 parts of low-melting-flow-index linear low-density polyethylene resin, 20 parts of polyamide-epichlorohydrin resin, 30 parts of melamine resin, 20 parts of vinyl acetate-vinyl versatate-maleic acid ester, 25 parts of tetrabutyl titanate, 20 parts of polybutylene terephthalate, 4 parts of wood pulp, 1 part of casein, 15 parts of white carbon black, 5 parts of linseed oil seeds, 20 parts of silk fibroin, 5 parts of guanidine phosphate, 5 parts of sorbitol, 5 parts of talcum powder, 1 part of benzotriazole type ultraviolet absorbent, 5 parts of medical stone, 5 parts of sodium caseinate and 2 parts of acrylic acid starch. The invention further discloses a preparing method of the sisal fiber reinforcing starch environment-friendly degradable garbage bag. The sisal fiber reinforcing starch environment-friendly degradable garbage bag is degradable, high in mechanical strength and good in toughness, the preparing method is simple, the raw material is low in cost, and the bag is suitable for large-scale application and popularization.

The invention discloses a nutrient solution for liquid culture of strawberries and a preparation method of the nutrient solution. The nutrient solution is prepared from the following raw materials in parts by weight: an alga mixed solution, potassium ferrate, aluminum sulfate, ammonium sulfate, magnesium sulfate, sodium selenite, vermiculite powder, corn bran, garlic straw, lightyellow sophora roots, biogas residues, boric acid, potassium humate, potassium polyphosphate, calcium nitrate and a proper amount of water. Combined with inorganic elements in a proper proportion according to growth requirements of the strawberries, a broken alga cell solution is adopted as a basic chelating solution and becomes an intermediate for establishing relation between roots and nutrients, the role of nutrients is fully played, the vermiculite powder and some organic materials are ground into fine powder and mixed with a culture solution, the fine powder is fully mixed with the culture solution under the action of high-speed shearing, the density of the nutrient solution is increased, the flow rate of the nutrient solution is reduced, the oxygen content of the liquid culture solution is increased, threat of pests is avoided, and resources in all aspects are saved.

The invention discloses a nickel waste water treatment method for a chip production line, belonging to the technical field of chip production waste water treatment. The waste water treatment method comprises waste water collection, waste water evaporation, waste gas treatment and solid waste slag treatment; the waste water evaporation is that high-temperature gas is led into an evaporation chamber for heating evaporation, wherein the evaporation time is 12 to 16h, and the evaporation temperature is 180 to 220 DEG C. After waste water is separated by a physical evaporation method, products are treated respectively, and the advantages of simple method, high treatment effect, no use of chemical reagents and environmental friendliness are achieved.

The present invention discloses a method of detecting overproduction of data when an H.323 endpoint is transmitting more video or other data than initially negotiated, and makes it produce less by utilizing standard flow control procedures. Flow control messages are sent periodically, incrementally instructing the H.323 endpoint to transmit lower amounts of bit rates, until the video rate received from the endpoint is equal to or lower than the initially negotiated rate, or some other fixed rate.

The invention discloses an anti-backflow oxygen humidification device for respiratory department, wherein the device includes an oxygen humidification unit; a recessed groove is arranged on the frontface of the oxygen humidification unit; a control panel is arranged above the front face of the oxygen humidification unit; a bottom plate is arranged at the bottom of a notch of the recessed groove;an oxygen storage tank is arranged at the notch of the recessed groove; the back end of the top of the oxygen humidification unit is fixedly connected with a handle; the front end of the top of the oxygen humidification unit is fixedly connected with an infusion pipe; the lower part of the outer wall of the infusion pipe is provided with a hollow disc, and the middle part of the outer wall of theinfusion pipe is provided with a sleeve; the output end of the infusion pipe is provided with a gas guide pipe, and the top of the gas guide pipe is provided with a gas transmission cover. According to the anti-backflow oxygen humidification device, gas enters an inner pipe through a gas inlet pipe, at the same time, water inlet pipes are controlled to input a liquid into an inner cylinder, the liquid enters the inner pipe and flows the water inlet pipes arranged on the inner wall at the left side and the right side of the inner pipe, sealing covers are arranged between the water inlet pipes,and a liquid sharing effect is achieved.

The invention relates to a high-pressure reaction system. The high-pressure reaction system comprises a high-pressure reactor provided with a first feeding port and a liquid phase discharge port; a feeding cylinder which comprises a feeding cylinder feeding port provided with a first valve, and a feeding cylinder discharging port connected with the first feeding port, wherein a second valve is arranged between the first feeding port and the feeding cylinder discharging port; a discharging cylinder which comprises a second discharging port connected with the liquid phase discharging port and adischarging cylinder discharging port provided with a fourth valve, wherein a third valve is arranged between the liquid phase discharging port and the second discharging port; and an oil hydraulic pump which is connected with the feeding cylinder. According to the high-pressure reaction system, scientific arrangement on valves relating to the feeding cylinder and the discharging cylinder is adopted. The invention also provides efficient energy recovery feeding and discharging process of the high-pressure reaction system; under assisting of pressure provided by the oil hydraulic pump, intermittent feeding and discharging or continuous feeding and discharging are achieved, energy can be fully utilized, the circulation rate of materials in the system can be reduced, and power consumption isreduced.

The invention belongs to the field of air purification, particularly relates to an intelligent air purification system based on the industrial internet, and aims to solve the problems that in the use process of an existing air purification system, air is inconvenient to fully disinfect and sterilize, and a filter plate is inconvenient to block, so that the quality and efficiency of air purification are reduced. According to the scheme, the system comprises an Internet terminal, the Internet terminal is connected with an air collection module, the air collection module is connected with an air quality detection module, the air quality detection module is connected with a data analysis module, the data analysis module is connected with a data collection module, and the data collection module is connected with a control module, and the control module is connected with an air purification module. According to the air purification system, in the using process, air can be fully disinfected and sterilized conveniently, and blocking prevention can be conveniently conducted on the filter plate, therefore the quality and efficiency of air purification are reduced, and the air purification system is simple in structure and convenient to use.

The invention provides a single-hole laparoscopic spleen retractor. The retractor is characterized by comprising a push-pull assembly, an outer sleeve, a sleeving assembly and a pressurizing assembly;the push-pull assembly can cause relative displacement between the outer sleeve and the sleeving assembly for storing or exposing the sleeving assembly; the sleeving assembly comprises inflatable protective sleeves and sleeving pieces disposed in the protective sleeves, the sleeving pieces are made of memory materials, and the protective sleeves are communicated with the pressurizing assembly. The single-hole laparoscopic spleen retractor can sleeve the spleen and vigorously pull the spleen without damaging the spleen to fully expose ligaments around the spleen, a surgeon can handle blood vessels connected to the spleen conveniently, and implementation of an operation is facilitated.

The invention discloses a water-saving irrigation device suitable for shallow root crops, and belongs to the technical field of agricultural irrigation. The water-saving irrigation device comprises aplurality of irrigation water tanks which are evenly distributed in a linear mode and a water supply pipe, and a connecting rod is fixedly connected between every two adjacent irrigation water tanks.;the two ends of the connecting rods are fixedly connected with the irrigation water tanks on the two sides correspondingly, and water injection pipes are arranged at the top ends of the irrigation water tanks in a communicating mode. Targeted irrigation can be carried out by combining root system distribution characteristics of shallow root crops, main centralized irrigation is carried out on shallow soil where more root systems are distributed, secondary proper irrigation is carried out on deep soil where less root systems are distributed, and irrigation is carried out in a mode of directlyinfiltrating water into the soil, evaporation of water in the irrigation process is greatly reduced, then water resources are saved, a small amount of fertilizer can be automatically applied to the crops in the irrigation process, and better growth of the crops is facilitated.

The invention discloses a direct-feeding type waste plastic asphalt modifier which comprises the following raw materials, by mass: 49-69 parts of LDPE, 30-50 parts of high-fluidity low-density polyethylene, and 1 part of antioxidant. The preparation method comprises the following steps: (1), mixing the LDPE reclaimed material, the high-fluidity low-density polyethylene and the antioxidant in partsby mass at the temperature of below 60 DEG C, and performing stirring to obtain a blended material; and (2), extruding and granulating the blended material until the particle size is less than or equal to 3mm, thereby obtaining the direct-feeding type waste plastic asphalt modifier. The modifier disclosed by the invention can be directly put into an asphalt mixture to participate in mixing of themixture, and is quickly melted in matrix asphalt under the action of high-temperature shearing dispersion of the mixture to achieve micron-scale dispersion, so that a problem of storage stability ofwet-process waste plastic modified asphalt taking LDPE as a main component is solved, and the high-temperature rutting resistance of the asphalt mixture is improved.