10results about How to "Improve exchange capacity" patented technology

The utility model relates to sewage treatment field especially, it is a kind of single tower low pressure stripping device for sewage treatment, including support frame, shell, gas outlet, sewage inlet, battens and gas outlet component etc., support frame is connected with shell, shell upside is connected with gas outlet, shell upper portion left side is connected with sewage inlet, shell middle part inboard is connected with multiple battens, support frame lower part is equipped with the gas outlet component for treating acidic component in sewage. The utility model discloses through sewage S shape along batten flows to shell lower part, while sewage will promote impeller and cleaning frame rotation to scrape the impurity on batten, so that water vapor moves upward, flows through air inlet hole and contacts sewage to treat sewage, so that it can remove acidic component when sewage flows and treat, promote cleaning frame rotation to scrape the impurity on batten, prevent air inlet hole blockage, enhance gas exchange effect, improve sewage treatment efficiency.

The invention relates to the technical field of treatment of heavy metal ions in soil, and discloses a preparation method and application of a flower-like soil heavy metal ultra-stable mineralizer. A coprecipitation method is adopted, an alkali source is provided for a system through amino alcohol, a metal precursor preferentially grows in the specific direction in the reaction process, and then nanosheets are driven to be spontaneously assembled into a three-dimensional flower-shaped structure. Meanwhile, the amino alcohol can expand interlayer channels and enhance the anion exchange capacity of the material. The finally obtained hydrotalcite with the three-dimensional flower-shaped structure can efficiently adsorb and fix heavy metal ions in soil.

The utility model discloses a dip-coating method oxygen-free copper rod up-drawing continuous casting machine which comprises a continuous casting machine body, a cooling pipe is arranged at the outer end of the continuous casting machine body and matched with the continuous casting machine body, a driving motor is arranged at the outer end of the cooling pipe, a rotating ring is arranged at the upper end of the cooling pipe, and the driving motor is matched with the rotating ring. A rotating ring is arranged in the continuous casting machine main body, a stretching frame is arranged on the inner side of the rotating ring, mixing blades are arranged on the stretching frame, a cleaning box is arranged at the upper end of the continuous casting machine main body, a cleaning ring is arranged in the cleaning box, an exhaust valve is arranged at one end of the cleaning box, a dip-coating pool is arranged at the upper end of the cleaning box, a material penetrating hole is formed in the dip-coating pool, and a sliding seal is arranged in the material penetrating hole. The equipment can improve the cooling effect and the machining quality of the copper rod.

The invention belongs to the technical field of biological manufacturing, and discloses a 3D printing gel sphere for constructing an organoid structure and a preparation method of the 3D printing gel sphere. The invention discloses 3D printing bio-ink. The 3D printing bio-ink comprises a photo-crosslinking hydrogel material, an extracellular matrix material loaded with target cells or organoids and DNA dynamic hydrogel. According to the 3D printing bio-ink provided by the invention, the DNA dynamic hydrogel, which is one of the core components of the 3D printing bio-ink, has extremely high biocompatibility and designability, physical crosslinking is realized through hydrogen bonds between DNAs, the crosslinking process is reversible and can dynamically change along with the surrounding environment, and a continuous and appropriate mechanical environment is provided for formation of a large-volume organ structure. The 3D printing bio-ink can be used for constructing a millimeter-level spherical gel culture environment of a large-volume organ-like structure, namely, gel microspheres are obtained through 3D printing.

The utility model relates to a coastal inner bay upstream face structure, the coastal inner bay upstream face structure comprises a seawall, a first groove body and a grating piece, a plurality of convex parts are arranged on one side of the upstream face of the seawall, at least parts of the convex parts extend in the height direction of the seawall in the length direction, and the convex parts are arranged at intervals in the length direction of the seawall; a groove which is concaved in the convex parts is formed between every two adjacent convex parts; the first groove is located on the side, close to the bottom, of the seawall upstream face, and an opening is formed in the top of the first groove. The grid piece comprises a first grid and at least two second grids, the first grid extends in the length direction of the seawall and is arranged among the multiple convex parts, and a preset gap is formed between the first grid and the inner wall of the groove; the second grids extend in the thickness direction of the seawall and are arranged on the two sides of the first grids. The coastal inner bay upstream face structure can provide inhabiting and refuge spaces for fishes and other coastal aquatic organisms, and protection and recovery of marine organisms are promoted.

The invention provides a microgravity environment microalgae closed culture container, a microgravity environment microalgae closed culture system and a use method. The upper half shell and the lower half shell are connected to the upper end and the lower end of the culture solution box respectively; the culture solution box comprises a wave-shaped solution box top wall and a wave-shaped solution box bottom wall which are made of hydrophobic breathable materials, a solution box side wall which is connected with the solution box top wall and the solution box bottom wall in a matched mode, and a light source assembly which is arranged in the culture solution box in a penetrating mode; the upper half shell is matched with the top wall of the liquid tank to form an upper air chamber; the lower half shell is matched with the bottom wall of the liquid tank to form a lower air chamber; and the culture solution box, the upper air chamber and the lower air chamber are respectively provided with an inlet and an outlet. According to the microgravity environment microalgae closed culture container provided by the invention, the contact area between the culture solution box and the air is increased, and the exchange efficiency of the microalgae culture solution and oxygen and carbon dioxide in the air is improved; in addition, the whole reactor is composed of fixing parts, so that the structure of the culture device is simplified, and the manufacturing cost is reduced.

The utility model discloses a kind of based on ultrasonic wave cooperates coarse coconut bran matrix's soilless cultivation breeding acceleration device, comprising: matrix processing unit, ultrasonic atomization system and intelligent control unit.In matrix processing unit, coarse coconut bran is formed after layer structure by steam puffing, pyroligneous acid modification, probiotic solidification, bottom layer is coconut shell charcoal particle, middle layer is modified coarse coconut bran matrix, surface layer is carbonized rice hull.Ultrasonic atomization system is composed of three-dimensional spiral flow guide pipe around matrix, high-frequency piezoelectric ceramic atomization piece group and nano bubble generating device.Intelligent control unit can dynamically adjust ultrasonic frequency and working mode, simulate day-night rhythm to adjust ultrasonic and illumination.By optimizing matrix structure and ultrasonic atomization technology, nutrient solution is evenly covered root system with micron grade fog particle, while nano bubble promotes dissolved oxygen concentration, solve the problem that traditional fog culture droplet particle size is big, root system is insufficient in oxygen supply.

The application discloses a saline-alkali soil composite improver and a preparation method thereof, relates to the technical field of soil improvement, and raw materials include 18-22 parts of ion intercalation modified expanded vermiculite, 10-14 parts of humic acid, 0.2-0.4 parts of polyacrylamide, 6-9 parts of urea, 5-7 parts of diammonium phosphate, 4-6 parts of potassium sulfate, and 10-18 parts of iron modified biochar-attapulgite composite carrier immobilized microbial inoculant. The saline-alkali soil composite improver has excellent saline-alkali soil improvement effect.

The application belongs to the technical field of fertilizers, and provides a preparation method of modified fulvic acid and application of the modified fulvic acid in fertilizers.The preparation method of the modified fulvic acid comprises the following steps: step 1, dissolving fulvic acid in deionized water, ultrasonic activation, after reaction, drying to obtain activated fulvic acid; step 2, dissolving the activated fulvic acid in a sodium hydroxide solution, heating to 40-45 DEG C for 10-15 min, after cooling, adjusting pH, adding a polymer monomer and an initiator, heating to 40-45 DEG C for 3-3.5 h, and drying to obtain modified fulvic acid. The application introduces new functional groups, such as amide groups, into fulvic acid molecules through chemical reactions, so as to enhance the chelating capacity or adsorption performance of the fulvic acid on specific nutrient elements, thereby effectively preventing the fixation of the elements in soil, and improving the absorption efficiency of the elements by plants.

The utility model relates to the technical field of substrate cleaning, and discloses a horizontal inclined swing spraying device which comprises a guide rail, a swing frame, a horizontal swing assembly and an inclined swing assembly, the swing frame is connected with the guide rail in a sliding mode, and a plurality of spray pipes arranged in parallel are rotatably connected in the swing frame. The horizontal driving motor drives the pushing rod to drive the swing frame to horizontally slide in a reciprocating mode along the guide rail, the spray pipe generates overall swing motion in the horizontal direction, the pool effect caused by too long local staying time is effectively reduced, and the spray pipe is hinged to the swing rod and driven by the swing driving motor to obliquely swing around the axis of the spray pipe. The nozzle can generate dynamic angle change in the swinging process, the trend that liquid is accumulated in a specific direction is broken, the spraying direction is considered in a multi-angle area, and therefore the spraying coverage problem of the area between the spraying pipes is remarkably solved, and comprehensive and uniform spraying of liquid medicine is achieved.