Screw conveyor is a conveying equipment for powdery, granular and small lumpy materials. Because all kinds of bearings work in dust, the screw conveyorunder such working conditions needs to be installed reasonably and maintained regularly,so that the clients can get more benefits from it.
Before the installation of screw conveyor in 20days, the foundation is applied with cement, which can ensure the sufficient stability during the screw conveyor’s operation.
Installation

1.All parts should be fully counted before installing, and remove all kinds of pollution inside and outside.
2.The adjacent flange faces should be flat and tight, and the error of the wrong head at the joint of the inner surface of the casing should not exceed 1.4mm.
3.The asbestos rubber sheet between the flanges is allowed to exist the accumulation error to adjust the length of shell and screw machine.
5. The hanging bearings of the screw conveyor should be firmly fixed on the lifting lugs. After connecting with the adjacent spirals, the spiral rotation should be uniform. When installing, adjust the gasket between the bearing support and the lifting lug to ensure the coaxiality of the spiral axis.
6. When the screw machine is a single drive, the tail bearing cover should be opened, and the distance between the bearing end face and the cover should be less than 20mm.
7. After the casing of the screw machine is installed, tighten the anchor bolts.
8. All the connecting bolts are screwed to a reliable level.
9. The dust collecting port, the feeding port and the discharging port should avoid the joint between the flange of the boot shell and the cover, and generally adopt on-site welding.
Maintenance
1. Thescrew conveyor should start without load, that is, start when there is no material in the screw conveyor, and then feed the screw machine after starting.
2. When the screw conveyor is initially feeding, the feeding speed should be gradually increased until the rated conveying capacity is reached, and the feeding should be uniform. Otherwise, it will easily cause the blockage of the conveying materials and the overload of the driving device, which will result in the whole damage of machine.
3. In order to ensure the no-load start of the screw machine, the machine should stop feeding before stopping, and stop the operation after the materials in the casing are completely conveyed.
4. The hard material should not be mixed into the material since conveying to avoid the jam and damage of the screw conveyor.
5. Always check the working condition of each part during use. Pay attention to whether the fastening parts are loose. If the parts are loose, immediately tighten the bolts.
6. Special attention should be paid to whether the screw between the spiral tube and the coupling shaft is loose, dropped or cut. If such a condition is found, it should be stopped immediately and corrected.
7. The cover of the screw shaft should not be taken off while the machine is running, so as to avoid accidents.
8. Any abnormal phenomenon that occurs during the operation should be checked and eliminated, the machine must not be at a run time.
9. The moving parts of the screw conveyor should be regularly lubricated.