3results about How to "Avoid flushing" patented technology

The utility model discloses a dapagliflozin preparation reaction device with a protection function, and relates to the technical field of chemical medicine production equipment. Comprising a reaction kettle body, a protection part is rotatably arranged in an inner cavity of the reaction kettle body, a main material enters the reaction kettle body through a main material pipe, an ingredient enters an ingredient barrel in the reaction kettle body through an ingredient pipe, and at the moment, a sealing disc is tightly attached to the bottom of an inner cavity of the ingredient barrel to seal the bottom of the ingredient barrel. The main material and the auxiliary material do not react immediately, so that the material and the auxiliary material are prevented from violently reacting to generate material flushing, and liquid medicine in the reaction kettle body is prevented from being sprayed out through the auxiliary material pipe and the main material pipe to injure personnel.

The application discloses a kind of semiconductor wafer cutting equipment and method thereof, it is related to wafer cutting technical field, the semiconductor wafer cutting equipment, including protective shell, the inside of the protective shell is provided with crystal bar support component and cutting component, crystal bar support component is located above cutting component, cutting fluid supply device is further provided in the protective shell, the cutting fluid supply device is used to carry out fluid supply to crystal bar cutting site, the cutting fluid supply device is installed between crystal bar support component and cutting component, diamond solidification mechanism is provided on the cutting component, the diamond solidification mechanism is used to supplement diamond particles on diamond steel wire and solidifies diamond particles, diamond particle slurry is filled with the material that is cured quickly by ultraviolet light, so diamond particle slurry can be cured quickly by photo-curing lamp irradiation, to prevent cutting fluid from flushing away diamond particles as far as possible.

This invention discloses an atmospheric pressure cutterhead and cutter gate structure for an ultra-large diameter tunnel boring machine (TBM), relating to the field of TBM technology. It includes an atmospheric pressure cutterhead with multiple cutter modules mounted on it. Each cutter module includes a cutter cylinder. A gate chamber is fixedly connected to the bottom of a first cutter chamber. The sealing mechanism includes a connecting ring fixed to the top of the gate chamber, a rotating ring on the outside of the connecting ring, and a set of gates hinged to the bottom of the connecting ring. A hinge rod is inserted through a through hole. A hydraulic cylinder is fixedly connected inside the gate chamber, with a rack fixedly connected to the end of the hydraulic cylinder. A set of toothed blocks is fixedly connected to the outside of the rotating ring. This invention controls the hydraulic cylinder to retract, causing the rack to move in the opposite direction. The rack then causes the toothed blocks to rotate in the opposite direction, which in turn causes the rotating ring to rotate in the opposite direction. The rotating ring then causes the hinge rod to rotate, which in turn causes the gates to rotate in the opposite direction. All gates fit together, sealing the passage inside the gate chamber. This type of gate occupies little space and can increase the design quantity of cutters on the atmospheric pressure cutterhead.