Drying machines are mainly used to separate solid particles from liquid suspensions; or to separate two immiscible liquids of different densities (e.g., separating cream from milk); they can also be used to remove liquid from wet solids, such as drying wet clothes with a washing machine; special ultra-speed tube separators can also separate gas mixtures of different densities; utilizing the characteristics of different densities or particle sizes of solid particles settling at different speeds in liquid, some sedimentation centrifuges can also classify solid particles by density or particle size.

The purpose of the experiment: Moisture is thrown out through the small holes on the shaker basket and is collected and discharged uniformly. In our daily life, no matter how good the quality of the dryer is, it cannot completely dry our clothes. After drying, we still need to air-dry them before wearing.
Experimental Cognition
Battery box: As the name suggests, it is a box used to install and fix the batteries, which is a device for outputting battery power.

DC motor: It is composed of stator and rotor. A DC motor is an electric motor that converts direct current electrical energy into mechanical energy. Due to its good performance in speed regulation, it is widely used in electric power traction. DC motors are divided into three categories according to the excitation method: permanent magnet, field excitation, and self-excitation. Among the self-excitation, there are three types: series excitation, parallel excitation, and compound excitation.

Switch: A device for turning on and off power supply.
Drying drum: Separating the separator
Swing basket: material separation device

Experimental steps:
1. Experiment preparation: Understand the experimental equipment: screw hole plate, switch, wire, DC motor, battery box, dryer, dryer basket, screwdriver, slant-blade pliers.

Experiment Report:
The dryer typically can remove a large amount of water from our clothes within a few minutes, so we can wear them after drying for half a day. This is very convenient and quick. Moreover, the operation of the dryer is very simple and convenient; we only need to turn a button after plugging in the power.