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What are the factors that affect the screening efficiency of the sand screening machine?

Sep 26, 2021

In operation, many customers say that the efficiency is not good, so what are the factors that affect the screening efficiency of the sand screening machine?


1. The drum sand screening machine should be designed with a net bottom beating device, a jumping vibration wheel assembly device and a countercurrent slag removal device to greatly reduce the phenomenon of net sticking. It is very helpful to improve yield and quality.


2. Change from a single horizontal operation to a horizontal operation, and the comprehensive operation of jumping up and down is beneficial to reduce the blockage of materials and improve the output and quality of the trommel sand screening machine. The screening output has increased four times from the previous 500 kg/h.


3. The number of screens of large-scale drum sand screening machines has increased, and the screening level has been improved by six kinds of meshes. The motor pulley of the drum grading screen reduces the speed to increase the residence time of the material on the screen.


4. The improved drum screen sand machine has a screen frame slope of 9, a jitter of 2.4 mm, a swing of 21 inches, a vibration of 416 times per minute, and a screen box that swings 208 times per minute.


5. Countercurrent slag removal device, due to the countercurrent of the feed inlet to induce wind force. The mixing of sand stems, sand leaves and impurities is reduced and the product quality is improved. An observation glass window is designed at the airflow slag discharge below the feeding hopper.


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