6results about How to "Prevent oxidation failure" patented technology

The application discloses a semiconductor-dielectric-conductor type attenuation porcelain and a preparation method thereof, and relates to the technical field of electromagnetic wave absorption and attenuation materials. The attenuation porcelain is composed of a semiconductor phase, a dielectric phase, a conductor phase, a sintering aid and a binder; the conductor phase has a core-shell structure of a nickel-cobalt-cerium alloy solid solution inner core, a nitrogen-doped amorphous carbon intermediate layer and a silicon dioxide shell, and cerium atoms are doped in the nickel-cobalt alloy solid solution lattice in the form of lattice distortion. The preparation method comprises the following steps: preparation of a precursor solution, limited silicon dioxide coating, limited in-situ reduction and defect construction, mixing and forming, and high-temperature sintering. Through the synergistic effect of the semiconductor phase, the dielectric phase and the core-shell conductor phase, the application realizes comprehensive enhancement of impedance matching, interface polarization, conductive loss and multiple scattering attenuation, and can improve the high-temperature stability and electromagnetic wave attenuation performance of the attenuation porcelain.

The utility model relates to a toughened glass technical field, more particularly, relate to a kind of low emissivity hollow toughened glass, low emissivity hollow toughened glass includes the first toughened glass plate and the second toughened glass plate of parallel arrangement, and hollow cavity is formed therebetween and fills inert gas.Sealing assembly is arranged around hollow cavity perimeter side, and the core is frame spacer.First wing plate and second wing plate are respectively extended out in frame spacer two sides, first wing plate abuts first toughened glass plate, and second wing plate abuts second toughened glass plate.Frame spacer is close to one side of hollow cavity and sets up sealant layer, and it is set up structural adhesive layer in the side away from hollow cavity, and the design of the first wing plate and second wing plate's spring piece, can be actively adapted to glass plate thermal expansion and cold shrinkage deformation by self elastic bending, greatly reduce the risk that sealing area produces microcrack or gap due to repeated temperature change.Obvious promotion glass in complex thermal environment under long-term sealing reliability and service life.

The utility model relates to burner technical field, concretely relates to a burner with backfire avoidance structure, including burner main part, the one side fixed connection of burner main part has the cannon barrel, the inside of burner main part is provided with the steady flame disc, and the steady flame disc is fixedly installed with the igniter needle and the spray gun, and the end of igniter needle far away from the steady flame disc and the end of spray gun far away from the steady flame disc can slide and extend out of burner main part. Through the first displacement mechanism cooperation power piece drive steady flame disc, igniter needle and spray gun far away from cannon barrel, quickly evacuate combustion chamber and peripheral high temperature area, avoid backfire flame direct contact igniter needle and oil nozzle, prevent igniter needle electrode oxidation failure, oil nozzle fuel passage coking block, solved the burner combustion chamber and the flow through cavity intercommunication, the cavity residual gas is easy because high temperature backfire when stop using, if fuel spray gun, igniter needle and steady flame disc have not evacuated, can cause igniter needle failure, oil nozzle block technical problem.

The invention relates to the technical field of tissue engineering, and particularly discloses a pilose antler tissue cell culture method which comprises the following steps: S1, cell in-vitro culture; s2, directional induced differentiation; step S3, ossification induction; the induction culture medium 1, the induction culture medium 2 and the ossification induction culture medium are added, amphotericin B capable of covering the fungal pollution risk is added into the induction culture medium 1, fetal calf serum contained in the induction culture medium 1 can neutralize trypsin, recombinant human HGF contained in the induction culture medium 2 can improve the migration ability of cells, and meanwhile, the ossification induction culture medium can be used for preparing the ossification culture medium. The recombinant human bFGF can synergistically promote proliferation, so that emigrated cells are quickly accumulated, and the situation that the cell density is too low due to insufficient proliferation after emigration is avoided; ascorbic acid-2-phosphate contained in the ossification induction culture medium can avoid oxidation failure of ascorbic acid, and the cell emigration efficiency is improved through the synergistic effect of the substances.

The utility model relates to a flue gas pipeline with a waste heat recovery function, which belongs to the technical field of flue gas pipelines and comprises a flue gas input pipeline, a flue gas filtering box body, a waste heat recovery box body, a water storage tank and a flue gas output pipeline, and the flue gas input pipeline, the flue gas filtering box body, the waste heat recovery box body and the flue gas output pipeline are communicated in sequence. According to the utility model, the high-temperature-resistant filter assembly is arranged and can tolerate smoke at 900-1000 DEG C for a long time, the problem of failure of a traditional organic filter bag due to high-temperature fusion or metal filter bag oxidation can be avoided, and the dust removal treatment can be conveniently carried out on the filter assembly without shutdown by matching with a blowing dust removal system, so that the smoke passing rate is ensured; the heat exchange area can be effectively increased, so that the flue gas waste heat recovery rate is improved, the interception rate of flue gas impurities can be effectively increased through the multi-layer composite filtering structure, and the filtering effect is improved.

This invention provides a method and apparatus for electrochemical adsorption treatment of perchlorate wastewater, comprising: conveying a fluidized carbon-based electrode slurry to the anode and cathode chambers of the electrochemical adsorption treatment apparatus, and then returning it to the electrode slurry storage tank to form a circulating flow; simultaneously, perchlorate wastewater and concentrate are respectively input into the desalination chamber and concentration chamber, and under the drive of a DC electric field, ions in the wastewater are forced to migrate in a directional manner, thereby achieving the removal of perchlorate ions in the aqueous phase, ensuring that the perchlorate wastewater meets discharge standards, and the treatment process is highly efficient and low-cost. The electrochemical adsorption treatment apparatus disclosed in this invention includes modules such as a cathode end plate, a cathode current collector, a first cation exchange membrane, a desalination chamber partition, an anion exchange membrane, a concentration chamber partition, a second cation exchange membrane, an anode current collector, and an anode end plate. Its equipment has low cost, high desalination rate, and low energy consumption, and has great application prospects in the treatment of perchlorate wastewater.