5results about How to "Solve difficult technical problems" patented technology

This invention relates to the field of water treatment technology, specifically disclosing a hydraulically driven continuous flow aerobic granular sludge-membrane filtration integrated device and its application. The device includes an influent system, an effluent system, a reactor shell, a membrane module, and an aeration module. A first baffle is installed inside the reactor shell, dividing the interior into an anoxic zone and an aerobic zone. A multi-stage flow guiding mechanism is vertically arranged within the anoxic zone to change the flow direction of the sludge-water mixture. The aeration module is located at the bottom of the aerobic zone, enabling the sludge-water mixture to circulate between the anoxic and aerobic zones. The membrane module is located within the aerobic zone and positioned above the nano-aeration disc. This invention achieves favorable hydraulic conditions under continuous flow, creating a driving force for granulation and enabling rapid formation and stable operation of aerobic granular sludge. The combination of aerobic granular sludge and membrane module filtration improves effluent quality, reduces membrane fouling, shortens the process flow, and reduces floor space requirements.

The application provides an ethylene oxide tail gas treatment method and system, which comprises the following steps: separating ethylene oxide-containing tail gas through an absorption tower, collecting a gas phase stream without ethylene oxide at the top of the tower, and obtaining an ethylene oxide-containing rich absorption liquid phase stream at the bottom of the tower; heating the ethylene oxide-containing rich absorption liquid phase stream through an inlet-outlet heat exchanger to obtain a heated liquid phase stream; heating the heated liquid phase stream through a reactor feed heater to obtain a heated liquid phase stream; regenerating the heated liquid phase stream through a reactor to obtain a lean absorption liquid phase stream; heating the lean absorption liquid phase stream and the ethylene oxide-containing rich absorption liquid phase stream through the inlet-outlet heat exchanger to obtain a cooled lean absorption liquid phase stream; cooling the cooled lean absorption liquid phase stream through a lean absorption liquid cooler to obtain a cooled lean absorption liquid phase stream; and recycling part of the cooled lean absorption liquid phase stream to the absorption tower as an absorption liquid.

The application relates to the technical field of electronic devices, and provides a wire board connector which comprises a metal shell, a terminal assembly assembled in the metal shell, and a cable connected with the terminal assembly, wherein the metal shell is provided with a mounting portion and a matching portion formed on both sides of the mounting portion; the mounting portion is provided with a receiving cavity for adapting the terminal assembly; the terminal assembly comprises a terminal; the terminal is provided with an elastic portion and a wiring portion; the elastic portion is exposed to the lower surface of the mounting portion and abuts against a circuit board; and the wiring portion is exposed to the upper surface of the mounting portion and connected with the cable. Through the modular design, the technical problem that a high-speed and high-transmission-rate wire board connector with compact structure is difficult to manufacture is solved, the modular automatic mechanism manufacturing is realized, and good effects of quality improvement, yield increase and capacity expansion are achieved.

The utility model provides a quick connection prestressed pipe pile, including first pipe pile and second pipe pile, one end of first pipe pile is equipped with movable female joint, one end of second pipe pile is equipped with male joint, first pipe pile with second pipe pile is connected fixed through movable female joint with male joint, wherein, movable female joint includes the sleeve of fixed first pipe pile end and the sleeve cooperation movable nut, through the ingenious cooperation design of sleeve and movable nut, not only has improved the pipe pile connection efficiency, has reduced the time needed for traditional welding, and has solved the technical problem of pipe pile centering difficulty in the on -the -spot construction.