5results about How to "Increase penetration rate" patented technology

This invention relates to the field of norfloxacin production technology, specifically disclosing a filtration device for norfloxacin production, comprising: a perforation mechanism disposed inside a filter cylinder for perforating the filter cloth, the perforation mechanism being located below the filter cloth, the perforation mechanism including a gas conveying component for conveying gas and a perforation component for conveying gas to the filter cloth, the perforation component being mounted on and communicating with the gas conveying component, and the perforation component being provided with an outlet hole for discharging gas to the filter cloth; the filtration device for norfloxacin production of this invention, wherein the gas conveying component conveys air into the perforation component, the air entering the perforation component is blown toward the filter cloth under the guidance of the outlet hole, so that the air passes through the filter pores on the filter cloth, thereby perforating the filter pores on the filter cloth, improving the filtration efficiency of the raw material mixture, and eliminating the need for frequent filter cloth replacement, thus improving the working efficiency of the filtration device.

The present application relates to the technical field of moisture-permeable membrane materials, and provides a polysulfone moisture-permeable hollow fiber membrane, the average pore size of a first surface is not greater than 100 nm, and the average pore size of a second surface is not less than 0.25 μm; the content of sulfonic acid groups on the first surface is greater than the content of sulfonic acid groups on the second surface, and the difference between the content of sulfonic acid groups on the first surface and the content of sulfonic acid groups on the second surface is not less than 1X10 ‑3 -4; the water conversion efficiency of the hollow fiber membrane is 40% to 70%, and the water vapor permeation rate of the hollow fiber membrane is 0.5 to 3 g / min. The structure of the polysulfone moisture-permeable hollow fiber membrane provided by the present application shows high water conversion efficiency and water vapor permeation rate, and also has good tensile strength, so that it has a long service life.

The application discloses a nano-bubble enhanced reverse osmosis membrane system and an application method thereof, and belongs to the technical field of water treatment membrane separation. The system is composed of a nano-bubble generating and injecting module, a reverse osmosis membrane component and an online cleaning module. 10-200 nm negative nano-bubbles are prepared by ultrasonic cavitation or pressure dissolution method, and are uniformly injected into the water inlet end of the membrane after cyclone distribution. The functionalized membrane is modified by carbon nanotubes / metal organic framework and is decorated with a negative interface, and forms a double electrostatic repulsion layer with the nano-bubbles. Online cleaning is combined with ozone radical oxidation and gas-liquid pulse micro-jet physical peeling to realize drug-free membrane regeneration. The application solves the problems of traditional reverse osmosis membrane pollution, concentration difference polarization and high energy consumption through the synergistic effect of gas-liquid-membrane three phases, and is suitable for industrial production.

This invention relates to the field of ecological agriculture technology, specifically disclosing a segmented erosion control method for sloping farmland based on plant hedges. The method includes the following steps: dividing the sloping farmland into upper, middle, and lower planting areas according to the terrain from high to low; and then correspondingly installing upper, middle, and lower planting hedges, and constructing a plant community in the lower area. The installation of upper planting hedges includes inoculating the rhizosphere soil with nematodes, or with a combination of nematodes and microbial agents. The microbial agents include at least one of Bacillus, Arthrobacter, Neurospora, or Penicillium. This invention integrates "source control, reservoir enhancement, and potential tapping," effectively intercepting surface runoff and increasing soil moisture infiltration by altering the slope's micro-topography. This is of great significance for improving soil fertility and water and fertilizer resource utilization in dryland farmland, reducing fertilizer use and nitrogen and phosphorus loss, balancing nutrient distribution on the slope, increasing nutrient utilization, and ensuring ecological security.

The present application relates to hydrogen purification technical field, a kind of high-efficiency stable palladium tube hydrogen purifier, comprising: shell assembly, shell assembly is made of shell, heat preservation layer and inner container, and heat preservation layer is filled in the gap between shell and inner container, the middle of one end of inner container is fixed with the original gas inlet pipe extending out of shell, and the one end of original gas inlet pipe is fixedly installed with inlet valve;Feed pretreatment component, feed pretreatment component is set in the one end of inner container close to original gas inlet pipe, and its top extends to the top side of shell;End cap, end cap is fixedly installed in the one end of shell away from original gas inlet pipe, and the middle of end cap is fixed with hydrogen outlet pipe.The present application realizes the multistage depth purification of hydrogen, greatly improves the recovery rate and purity of hydrogen after purification, simultaneously, high-efficiency breaks the laminar boundary layer formed by raw material gas on the surface of palladium tube body, reduces the resistance of hydrogen molecules from raw material gas main body to spread to the surface of palladium tube, and realizes the double energy saving of tail gas waste heat recovery and tail gas kinetic energy utilization.