2results about How to "Change aperture size" patented technology

This utility model relates to the field of nuclear contaminated wastewater treatment technology, and discloses a nuclear contaminated wastewater storage device with multiple filtration functions. The device includes a storage tank, a metal filter screen fixedly connected inside the storage tank, a hydraulic cylinder (first type) fixedly connected inside the storage tank, a moving column (first type) fixedly connected to the drive end of the hydraulic cylinder (first type), a second hydraulic cylinder fixedly connected inside the storage tank, a moving column (second type) fixedly connected to the drive end of the hydraulic cylinder (second type), multiple adjusting plates (second type) fixedly connected to the outside of the moving column (first type), and multiple adjusting plates (first type) fixedly connected to the outside of the moving column (second type). A cleaning assembly is installed inside the storage tank. In this utility model, for different types of nuclear wastewater, the filter aperture of the metal filter screen needs to be adjusted. Activating the first hydraulic cylinder pulls the moving column (first type), causing the adjusting plates (second type) to move; simultaneously activating the second hydraulic cylinder pushes the moving column (second type), causing the adjusting plates (first type) to move.

The utility model relates to the technical field of crushers, and provides a slag powder production crusher with a noise reduction structure, which comprises a crusher body and a crushing cavity, and the crushing cavity is arranged in the crusher body. The screening structure is arranged, only part of slag powder can be filtered out through the screening holes, if the size of the slag powder is large, the slag powder cannot be discharged and can be crushed again in the crushing cavity, and the slag powder can be filtered out until the size of the slag powder meets the requirement, so that the quality of the discharged slag powder can be guaranteed, and the service life of the slag powder is prolonged. The clamping block and the machine body form a clamping structure through the clamping groove, and the connecting plate can be replaced through the clamping groove and the clamping block, so that the hole diameter of the screening hole can be changed, the size of the discharged slag powder can be conveniently adjusted, and the device has the functions of conveniently screening and adjusting the screening hole diameter; and the applicability and the working efficiency of the crusher with the noise reduction structure for slag powder production during use are improved.