How to judge the drying effect of sludge drying equipment

The drying effect of sludge drying equipment can be judged from two aspects, one is the production capacity of sludge drying equipment, the other is the quality of finished sludge after drying, that is, the sludge is dry and wet evenly, and the moisture content meets the requirements specified by users. There are many factors affecting the drying effect of sludge drying equipment, such as the characteristics of sludge (moisture content, particles, viscosity, etc.), drying temperature, air volume, drying process, etc.

According to the principle of sludge drying, in the process of sludge drying, heat is transferred to the sludge through heat transfer, so as to realize the evaporation of sludge water. If the moisture content of sludge is high, if the drying equipment is directly used for drying, it will not only consume a lot of heat, but also prolong the residence time of sludge inside the equipment barrel, greatly reduce the drying efficiency of sludge and increase the cost of sludge drying, which may affect the quality of the finished products after sludge drying. Therefore, for the sludge with high moisture content, the water content of the sludge is usually controlled within a certain range through the dehydration equipment, and then the drying is carried out, which not only improves the drying efficiency of the equipment, but also ensures the effect of sludge drying.

In addition, the viscosity and particle size of sludge also affect the drying efficiency and drying effect of sludge drying equipment. The sludge with high viscosity is easy to stick to each other or to the wall during drying, which is not conducive to the evaporation of sludge water. Moreover, the sludge adhered to the cylinder wall may cause sludge blockage and affect the sludge drying production. The sludge with large particles is not conducive to the evaporation of water in the sludge, and it needs to consume a lot of heat to dry it. Therefore, in view of these two situations, the inner part of the real energy-saving sludge drying equipment adopts a special rotary rake scattering device and a lifting material system, which can continuously disperse, separate and crush the sludge. Under the action of the guiding material system, the sludge will continue to rise and fall, accelerate the contact between sludge and hot air, improve the utilization rate of heat energy, and greatly save energy consumption. At the same time, it can avoid the mutual adhesion or wall adhesion between sludge, which can not only improve the drying efficiency of sludge, but also ensure the effect of sludge after drying.

In a word, if the characteristics of drying sludge are different, the process of sludge drying equipment produced by manufacturers will be greatly different, and the relevant auxiliary equipment will also be very different. The production capacity of sludge drying equipment can be brought into full play and the quality of finished products can be guaranteed only when the equipment is reasonably configured and operated in strict accordance with various drying conditions.