The working principle of microwave quartz sand drying equipment

Microwave quartz sand drying equipment is a new type of energy-saving drying equipment, also called microwave drying equipment. In addition to drying quartz sand, it can also be used as a dryer for materials with other humidity and particle size ranges. Such as slag dryer, clay dryer, limestone dryer, coal powder dryer, quartz stone dryer and various metal concentrate dryers, tailings dryers and other materials that are not afraid of high temperatures. machine. According to the different materials to be dried, the aspect ratio, power and weight of the equipment will vary.

When the quartz sand drying equipment is working, the quartz sand is first sent to the hopper, and then enters the feeding end through the feeding pipe. The slope of the feeding pipe should be greater than the natural inclination of the material so that the material can flow smoothly into the dryer.

The dryer cylinder is a rotating cylinder slightly inclined to the horizontal. The material is added from the higher end, and the heating medium enters from the lower end, and is in countercurrent contact with the material. With the rotation of the cylinder, the material moves to the lower end by gravity. When the wet material moves forward in the cylinder, it directly or indirectly receives heat from the heating medium, so that the wet material can be dried, and then sent out through a belt or screw conveyor at the discharge end. After the heating medium passes through the dryer, a cyclone dust collector is needed to capture the materials in the gas. If it is necessary to further reduce the dust content of the exhaust gas, it should be discharged after passing through a bag filter or a wet dust collector.

At present, the beneficiation and purification of quartz sand mainly uses processes such as scrubbing, magnetic separation and flotation. The moisture content of quartz sand is mainly surface water, which is relatively easy to remove. Therefore, the drying process of quartz sand mainly depends on the output size and the finished material. Features, ease of operation and operating cost are considered.