1. Automatic stone removal: Through air selection control, the materials enter the crushing chamber, and large impurities such as ironware and stones fall into the impurity discharge auger and are automatically removed.
2. Protect the rotor: After removing large impurities such as iron and stones, the grinder rotor can be better protected.
3. Reduce the frequency of screen replacement:
Since stones, iron and other hard objects are removed, the screen damage rate is greatly reduced. Test data shows that adding an intelligent stone removal feeder can reduce the screen replacement rate by 50%.
4. Easy to use and maintain: Ironware, stones and other large debris can be cleaned together once every half a month, saving time and effort.
1.Principles of stone removal：Optimize the air separation system of the feeder, adjust the relationship between the suction air and the falling direction of the material, improve the stone removal effect, and reduce the probability of corn popping out.2.Choose to collect rocks closer to the drop point:
a. The density of stones is higher than that of corn, wheat and other raw materials, and changing the direction of movement of stones requires greater external force;
b. Most of the stones have irregular shapes and are not as round and smooth as corn or wheat. Therefore, when reaching the falling point along the slope, the initial speed is low and the horizontal movement distance is short;
c. When the corn falls from the feeding roller to the slope, because it is relatively brittle, a small number of scattered corn particles will jump up and then fall on the other side of the feeder box. If stones are collected here, the corn particles will More discharge.
3. Stone removal effect:
TWLY-S stone removal feeder has sold nearly 50 units and has been installed and used in many projects.
| Feed roller diameter(mm) | Feeding chamber width（mm） | Feed roller speed(r/min) | Equipped with power（kW） | Productivity（t/h） | Magnetic induction intensity of iron remover（T） | |
| TDWLY20×40 | 200 | 400 | 33 | 1.5 | 8～12 | ≥0.5 |
| 61 | 1.5 | 15～22 | ||||
| TDWLY20×60 | 600 | 61 | 1.5 | 20～30 | ||
| TDWLY20×80 | 800 | 33 | 2.2 | 12～20 | ||
| 61 | 2.2 | 22～35 | ||||
| TDWLY25×100 | 250 | 1000 | 33 | 2.2 | 20～30 | |
| 61 | 2.2 | 38～57 | ||||
| TDWLY25×120 | 1200 | 33 | 3.0 | 26～40 | ||
| 61 | 3.0 | 49～73 | ||||
| TDWLY25×150 | 1500 | 33 | 3.0 | 32～48 |
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