Rotary Drum Dryer Mining Applications

Rotary drum dryer is drying gear, Raymond mill, broadly utilized in mining. It really is divided into direct heat rotary drum dryer and indirect heat rotary drum dryer. Rotary drum dryer is also known as roller dryer or cylinder dryer, that's one of the most widespread and broadly used drying tools in mining. It truly is suitable for your drying of magnetic, hefty mineral and floating concentrates of metal and non-metallic minerals, clay of cement field and coal slime of coal field etc. It is actually characterized by high productivity and simple operation.

Classification in the Raymond mill: according to the mode of heat transfer involving the drying medium and wet resources, it truly is divided into direct heat transfer rotary drum dryer (transferring heat with dry media and wet supplies immediately speak to) and indirect heat transfer rotary drum dryer (the necessary heat for drying passed to your moist material by the cylinder wall indirectly). As a consequence of lower transfer efficiency and structural complexity, indirect heat rotary drum dryer is hardly to become chosen. Direct heat transfer rotary drum dryer is divided into downstream and upstream in accordance together with the course of flow of the drying medium and also the material. The principle a part of direct heat transfer rotary drum dryer can be a rotating cylinder with a slight angle on the horizon. Cylinder is transmitted by gear, using the general speed of two ~ 6r/min. The inclination on the cylinder is made a decision by its length, commonly concerning 1 ° to 5 °. The materials is feed from the higher part of the drum and contacts with hot air. Using the rotation from the cylinder, the material flows to the lower end dried and discharged under the force of gravity. Mainly because the dryer is working under negative pressure conditions, the feeding and discharging are sealed to prevent air leakage.

Ball mill vibrates greatly when reducer drives mill. The axis of Raymond mill bearing and reducer bearing are not in a line. The reasons are: ball mill didn’t pure slurry again when installing liner, or the bolt didn’t fix tight after second pure slurry. And the two axis of ball mill bearings are not in a line, which can also leads to vibrating. tlement: you should adjust ball mill again, and make the axis of ball mill bearing and reducer bearing in a line. Large scale ball mill is large and heavy, and it can cause foundation subsidence. In that case, you should set a test point for subsidence testing near operation site. If machine found abnormal, you should adjust it immediately. Reducer rotating sound is strange. In normal case, the sound of reducer rotating is evenly and steady. If there are hitting sound from gear wheel and friction voice, but machine runs normal, you can observe it continuously. And then find the reason to stop ball mill to handle it. Once the sound becomes loudly, you shall stop it for checking. What is worthy of attention is that reducer balance wheel and middle wheel are not installed as prescribed can lead to strange sound. It truly is dangerous to do so.