5results about How to "Avoid inadequate exposure" patented technology

This invention proposes a grinding device and method for diamond abrasive workpieces, belonging to the technical field of grinding devices. It addresses the problem of uneven grinding caused by debris accumulation during the grinding process of diamond abrasive workpieces, a core bottleneck restricting workpiece processing quality. The device includes a worktable with two supports and a mounting port on top. A placement plate with a central hinged support is located at the mounting port, and the placement plate includes a fixing device and a counterweight. Mounting slots are located at both ends of the mounting port, housing retractable support seats. The worktable also includes a vertical frame (slidingly connected to a crossbeam, with a grinding machine at the bottom of the crossbeam, and the vertical frame equipped with a first drive device to raise and lower the crossbeam) and a water tank (connected to water pipes, nozzles, and a water pump). This invention utilizes the coordinated operation of the supports, placement plate, and nozzles. The supports ensure the placement plate is horizontal for easy workpiece fixation. During grinding, the nozzles spray water to reduce debris and ensure uniform grinding. After grinding, the supports retract, and the placement plate tilts to allow debris to automatically slide off, reducing dust and improving efficiency.

This utility model provides a steel pipe phosphate clamping device suitable for different pipe diameters, relating to the field of steel pipe phosphate processing. It includes a mounting frame, with a drive assembly connected to the inner wall of the mounting frame. The drive assembly includes a lead screw that rotates through the top between the two sides inside the mounting frame. A drive motor is fixed to one side of the mounting frame, and a slider is connected to the outer side of the lead screw. A hydraulic cylinder is fixed to the bottom center of the slider, and a connecting plate is fixed to the end of the output shaft of the hydraulic cylinder. Sliding rods are symmetrically fixed to the top of the connecting plate, and a deflection mechanism is connected to the bottom of the connecting plate. A clamping mechanism is connected to the bottom of the deflection mechanism. This application, through the clamping mechanism, clamps the inner wall of the steel pipe, preventing insufficient contact between the outer wall of the steel pipe and the treatment liquid, improving the phosphate effect, preventing quality issues, and facilitating the clamping of steel pipes of different diameters, thus enhancing the applicability of the device.

The invention relates to the field of powder grading, in particular to a powder hollowness grading device and method based on terminal settling velocity difference. The device comprises a feeding unit used for supplying powder; the dispersion conveying unit comprises a conveying channel and two fan blade rotating devices, the conveying channel is obliquely arranged downwards from left to right and used for receiving the powder supplied by the feeding unit and allowing the powder to slide down along the conveying channel, and fan blades of the two fan blade rotating devices are embedded in the conveying channel side by side in the front-back direction; the airflow grading unit comprises an air cavity and an air outlet device, the air cavity is obliquely arranged upwards from left to right, an air outlet is formed in the upper end of the air cavity, an air inlet is formed in the lower end of the air cavity, the air outlet directly faces an outlet in the lower end of the conveying channel, and the air outlet device is used for blowing air to the air inlet of the air cavity; and the collecting unit is used for collecting the powder graded by the airflow grading unit. Accurate grading of the hollowness degree of the powder can be achieved based on the density difference, and the purity of the target solid powder is improved.

The utility model relates to the technical field of microbial fermentation, in particular to a microbial fermentation heat preservation tank for production, which comprises a tank body, a tank cover and an overturning unit, the overturning unit comprises an obtuse angle plate, a rotating shaft, a spiral blade, a shaft bracket, a fixing rod, a pull rod, a pressing plate, a heating assembly and an auxiliary assembly, raw materials are poured into the tank body, then the tank cover is covered, the auxiliary assembly is used for locking, and the tank body is sealed. When the pressing plate is pushed downwards, one end of the pressing plate can rotate on the outer side wall of the tank body, at the moment, the pull rod can abut against the fixing rod to rotate by 180 degrees, then the pressing plate is lifted upwards, the pull rod can drive the shaft frame to complete the rest 180-degree rotation, and in cycles, the rotating shaft is driven to rotate, the spiral blades are driven to turn over raw materials accumulated at the bottom, and the heating assembly is used for heating the tank body. And in this way, it is guaranteed that internal raw materials are evenly heated, insufficient contact between microorganisms and nutritional ingredients in the raw materials is avoided, and the fermentation efficiency and quality are improved.

This invention discloses a phosphorus trichloride production tail gas absorption and treatment device with safety monitoring function, including an absorption tower, a liquid distributor and an inlet pipe disposed on the absorption tower, an outlet pipe at the top of the absorption tower, and a drain pipe at the bottom of the absorption tower. It also includes an adaptive flow stabilizer and a gravity feedback anti-clogging packing assembly disposed within the absorption tower. The liquid distributor is located above the gravity feedback anti-clogging packing assembly, and the adaptive flow stabilizer is located below the gravity feedback anti-clogging packing assembly. This invention relates to the technical field of phosphorus trichloride production tail gas treatment equipment, specifically providing a phosphorus trichloride production tail gas absorption and treatment device with integrated adaptive flow stabilization, real-time monitoring of packing blockage, and gravity feedback anti-clogging, and equipped with safety monitoring function.