What are the reasons for the failure of the volute screw press sludge dewatering machine

The application of volute screw press sludge dewatering machine is more and more extensive, and it is used in many industries to treat sewage and sludge. Under normal circumstances, the screw stacking sludge dewatering machine can run smoothly, and there are no parts that need to be replaced regularly. It can complete the daily sludge dehydration work like a day for ten years. However, due to the quality problems of various manufacturers and the actual handling conditions of the owners, failures will inevitably occur. Here is an analysis of the reasons for the failure of the snail sludge dewatering machine. The faults of the screw stacked sludge dewatering machine basically fall into two categories: thin mud and shaft blockage. The main reason for the shaft blocking is due to the composition of the sludge.

The volute screw sludge dehydrator has a good effect on the treatment of organic sludge, but the problem of shaft blockage will occur in the treatment of inorganic sludge. Inorganic sludge is easy to dehydrate. When it is processed in the cavity of the equipment, the sludge will be too dry and stick to the screw shaft. With the increase of the amount of sludge, the sludge on the shaft will accumulate more and more, and the sludge cannot be removed from the screw shaft. The mud outlet at the front end is discharged and squeezed out between the rings, causing shaft blockage and mud leakage. Therefore, users must be clear about the nature of their sludge when choosing equipment, and do not choose a screw dehydrator for inorganic sludge.

The thin sludge output from the volute screw press sludge dewatering machine is mainly caused by poor flocculation. The flocculation of sludge largely determines the moisture content of sludge after dewatering. If the flocculation is not good, the moisture content of the detached sludge is high. In addition, there is another important reason, that is, the gap between the rings of the equipment is too wide. Some manufacturers process the rings to reduce costs, without deburring and stress relief, and the flatness of the rings is not enough. In order to avoid wear and tear, some manufacturers increase the thickness of the gasket to make the gap between the rings larger, so that the rings are not worn out but the dehydration rate of the equipment is also reduced, and the moisture content of the sludge after dehydration is very high. High, unable to meet processing requirements. It can be seen that the failure of the screw stacked sludge dewatering machine is mainly due to the characteristics of the sludge, the flocculation problem and the gap between the rings. These are issues that users must consider when choosing equipment.

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