38results about How to "Will not change nature" patented technology

The invention relates to outdoor dielectrophoresis dust removing equipment. The middle of a box body of the dust removing equipment is provided with a dust removing chamber. The dust removing chamber of the dust removing equipment is provided with parallel electrode groups. Each parallel electrode group comprises a plurality of parallel dielectrophoresis electrodes. The dielectrophoresis electrodes comprise metal profiles. The cross sections of the metal profiles are in the shapes with protrusions. The protrusions form the ridges of the dielectrophoresis electrodes. According to the outdoor dielectrophoresis dust removing equipment, the structural design is scientific and reasonable; a mixed flow control chamber, the dielectrophoresis dust removing chamber and an outlet smoke box are arranged in the equipment, so that airflow steadily and smoothly gets in and out of the dust removing equipment, and the applicability of the dielectrophoresis dust removing equipment under the outdoor environment is improved; and the parallel electrode groups are adopted, the electrodes of the different electrode groups can be connected to the two ends of an alternating current power source, and a dielectrophoresis effect can be formed in a large-scale range.

The present invention relates to a waveguide pressure sensor based on an M-Z structure and a detection method thereof. The waveguide pressure sensor based on an M-Z structure includes a single-wavelength light source, an M-Z structure and an optical power meter; the single-wavelength light source, the M-Z structure It is sequentially connected with the optical power meter, and the M-Z structure includes a sequentially connected input coupler, a pressure sensing area composed of two single-mode waveguides with different lengths, and an output coupler. The waveguide pressure sensor provided by the present invention uses the change of the effective refractive index to measure the pressure, so it will not change the nature of the force-applying object itself; compared with the traditional detection method, the measurement accuracy of this patent can reach 0.001μW, and the range can reach 12Mpa ; At the same time, the pressure detection process is completely based on the photoelastic effect and interference effect of the crystal, without current generation, so zero power consumption, energy saving and environmental protection.

The invention relates to a method for removing residual catalyst in bisphenol A reaction liquid from the production of the chemical material. The method is capable of removing the residual acid catalyst in the bisphenol A reaction liquid and improving the quality of the bisphenol A. The technical scheme comprises the following steps of: inputting the bisphenol A reaction liquid or acid-removing assistant of the bisphenol A reaction liquid into a mixer through an inputting pipe; and then inputting the liquid into an adsorber, wherein the adsorber is a tube-type device and the tube-type device is filled with the fiber film coalescence material; inputting hot water into a shell layer of the tube, wherein the acidity of the bisphenol A reaction liquid is smaller than or equal to 0.001 mmol / L and meets the requirement after the liquid is adsorbed by the adsorber; then directly outputting the bisphenol A reaction liquid through an outputting pipe; inputting acetone solvent into the adsorberto wash the fiber film coalescence material when the acidity is more than 0.001 mmol / L; inputting the washed acetone into a solvent pot to be recycled or be recycled after the acetone is distilled. The method provided by the invention has the advantages of low investment and simple process flow; the method does not lead in other impurities and does not change the performance of the bisphenol A; the temperature for deacidifying is low, the solvent can be recycled and the method can be used for producing the bisphenol A.

The invention belongs to the field of separation, and specifically relates to a hollow fiber positively charged membrane and a preparation method thereof, comprising the following steps: the following components in parts by mass: styrene maleic anhydride random copolymer, a main material, and a porogen and solvent; stirring at 60°C for 24 hours, standing for 24 hours to form a casting solution, and then extruding the casting solution and core solution from a hollow fiber spinneret into a coagulation bath for shaping to obtain a hollow fiber loaded positive containing exposed amino groups Electric membrane; the main material is polysulfone, polyethersulfone, polyvinylidene fluoride, and polyvinyl chloride; when synthesizing an internal pressure type hollow fiber positively charged membrane, the core The liquid contains polyamine substances; when synthesizing the external pressure type hollow fiber positively charged membrane, the coagulation bath contains polyamine substances. The hollow fiber membrane prepared by the method of the invention is obviously positively charged, and the pollution resistance (the ratio of cumulative water production to water production) is also obviously improved.

The present invention relates to a method for the manufacture of charge dissipating surface layers on components made of or consisting of dielectric polymeric materials or polymer-based composite materials intended for use in space and other extreme environments, said components having at least A surface, in particular, has two opposing surfaces, each of which has a planar shape or a three-dimensional shape. The method comprises the steps of carbonizing at least one surface of the component by ion bombardment in a vacuum environment while dynamically renewing the surface, said step utilizing a gaseous linear high current technology ion beam source in a noble gas bombarding the at least one surface with the formed ion beam and a predetermined amount of carbon-containing gas added in the ion beam gas blend to obtain a treated carbonized surface having a uniform surface resistivity in the range of charge dissipation Floor.

The present invention relates to a preparation method of silver-based η-Al2O3 mesoporous fiber antibacterial powder, comprising: 1) dissolving PEG600 in deionized water to obtain solution A, adding Al(NO3)3·9H2O to obtain solution B; 2) taking CO(NH2)2 was added to solution B to obtain solution C, and solution C was hydrothermally reacted to obtain product D; 3) product D was taken out, cooled and filtered to obtain product E, product E was washed, dried, and ground to obtain a precursor 4) Soak the mesoporous fiber in AgNO3 solution, add NH3·H2O, oscillate and adsorb to obtain silver-based η-Al2O3 mesoporous fiber antibacterial powder. The present invention adopts η-Al2O3 (PEG) mesoporous fiber as the carrier of antibacterial agent, effectively utilizes the good adsorption performance of mesoporous fiber, and the prepared antibacterial powder has obvious antibacterial effect, and since Al2O3 is the main chemical substance of ceramic glaze Components, using the mesoporous fiber as a carrier not only does not change the properties of the glaze, but also reduces the sintering temperature of the glaze and significantly improves the performance of the glaze layer.