A laboratory overhead stirrer is a device used in chemistry and biology laboratories to mix and stir liquids. It consists of a motor that drives a rotating shaft with a stirring blade or paddle attached to the end. The motor is mounted on a stand that is suspended from the ceiling, hence the name "overhead stirrer". The stirring speed can be adjusted by the user, and the device can be programmed to run for a set period of time. Overhead stirrers are commonly used in chemical synthesis, cell culture, and microbiology applications. They are particularly useful for mixing viscous liquids, suspensions, and emulsions, and for maintaining a consistent mixing speed over long periods of time. Overhead Stirrer,Laboratory Electric Stirrer,Laboratory Digital Agitator,Laboratory Overhead Stirrer Lachoi Scientific Instrument (Shaoxing) Co., Ltd. , https://www.lachoinst.com
The spiral classifier is a widely used equipment in mineral processing, based on the principle that different particle sizes and specific gravities result in varying settling velocities in a liquid medium. This allows for effective separation of fine and coarse materials. Fine particles remain suspended in the water and are discharged through an overflow outlet, while larger, heavier particles settle to the bottom of the tank. The system uses a rotating screw mechanism to lift and transport the coarser material back into the grinding mill, enabling continuous operation and efficient classification.
The classifier consists of a sturdy base made from channel steel, with a body constructed from welded steel plates. The screw shaft is equipped with a water inlet head, a bearing housing, and a cast iron sleeve, ensuring durability and resistance to wear. The lifting mechanism can be either electric or manual, offering flexibility depending on the application.
Spiral classifiers come in various types, including single and double helix designs, both submerged and surface-mounted. These machines are commonly used in concentrator plants to form a closed-loop system with ball mills, helping to classify ore and fine slimes during gravity concentration. They also play a key role in metal beneficiation processes, where they help separate slurries, wash ores, and perform desliming and dewatering operations.
Known for their simple design, reliable performance, and ease of operation, spiral classifiers are essential in many mining and mineral processing applications. Whether you're looking for a magnetic separator, flotation machine, or other mineral processing equipment, our company offers a wide range of high-quality solutions tailored to your needs.
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