The use of spiral grain conveyor in shaft kiln workshop

The use of spiral grain conveyor in shaft kiln workshop

Adding a rotary screen to the spiral grain conveyor can not only be used in the shaft kiln workshop, but also in the finished product workshop to prevent impurities in the cement from entering the packaging machine and causing damage to the packaging machine, which cannot work normally. Before installing the rotary screen on the shaft kiln spiral conveyor, the pre wetting mixer blades need to be replaced 1-2 times a month, and each time the blades are replaced, 2 emergency repair workers are required, and the kiln is stopped for 2-3 hours. According to incomplete statistics, the direct loss of replacing the mixing blades throughout the year is nearly 10000 yuan, and the indirect loss is more than 30000 yuan. After adding the rotary screen in 1994, there was no equipment damage caused by impurities, which improved the equipment operation rate, ensured the normal calcination of the shaft kiln, and further increased the hourly output

We added a rotary screen with a diameter of 500mm and a length of 450mm to the screw conveyor. The rotary screen can be made of old rotary screens ground with raw materials or steel plates punched and welded together. The length and diameter should be determined according to the width of the feeding port of the elevator and the outer shell of the screw conveyor. The screen head is supported by four iron plate skeletons with a thickness of 3mm, a width of 50mm, and a length of 196mm, and the screen tail is supported by a rear end cover. A circular hole with a diameter of 50mm is opened on the inner ring of the rear end cover welded to the screw tube shaft. When the rotary screen is working, the raw materials are pushed by the screw blades to the discharge port and enter the rotary screen. They are then sent to the feeding port of the elevator through the screen hole and sent to the shaft kiln for calcination by the conveying equipment. As the rotary screen rotates, In the feeding trough, the grain conveyor falls from the circular hole into the waste trough along the spiral tube shaft. The front and rear ends of the rotary screen are welded to the spiral tube shaft