In our daily life, we can often see the cascade screw sludge dehydrator, its appearance has brought great effect on our life, so how much do you know about its knowledge points? Next by our staff to give you a brief introduction to its related knowledge.

1. The hydraulic load can be treated, i.e. sludge flow into the equipment, in m3 / H means that the product of it and the concentration of sludge (solid content) is the dry solid load.

/ H means that the product of it and the concentration of sludge (solid content) is the dry solid load. 2. Can handle dry solid load, i.e. the weight of non volatile solid treated per hour, in kgds (dry solid) / H is. Under the normal sludge concentration, it is necessary to ensure that the dry solid load is 70% of the theoretical load of the equipment calibrated by the equipment manufacturer %- ninety

In the case of excessive equipment load, no matter how to increase the dosage of flocculant, the treatment effect will not be improved, which shows that the degree of mud biscuit is not appropriate, the solids carried by supernatant are on the high side, and the recovery rate decreases. The overflow of sediment carried by supernatant causes equipment wear, dynamic balance damage and vibration aggravation. Sometimes, due to the increase of sludge concentration, the actual sludge load exceeds the acceptable load index of the equipment when the sludge is fed according to the original flow rate, which reduces the treatment effect. At this time, it is necessary to gradually reduce the frequency of sludge feeding in time, observe the effect, and continue to try to control the flocculant flow to the economic dosage after the effect is stable.

On the contrary, when the sludge concentration decreases, it is necessary to gradually increase the sludge flow and adjust the flow with the dosing pump at the same time. If the sludge concentration is too low, although the dry solid load of the stacked screw type sludge dewatering machine is not high, the hydraulic load is very large. Due to the high hydraulic load, the low concentration sludge can not form an effective and uniform sludge ring layer, and the settled solids will be carried by a large amount of supernatant, which directly affects the treatment effect and efficiency. Therefore, for the low concentration sludge, such as the non concentrated sludge in the secondary sedimentation tank, the sludge is concentrated (such as the treatment after thickening by the thickener) or dehydrated after mixing with the high concentration sludge (such as the sludge in the primary sedimentation tank). In order to avoid overload of centrifuge caused by excessive torque due to excessive sludge loading, the frequency of sludge feeding pump should be appropriately reduced. This situation mainly occurs when the sludge concentration increases, but the original sludge flow rate is still used.