At this stage, sludge treatment not only needs simple dehydration treatment, but also needs resource utilization to achieve the "four modernizations" of sludge. After the sludge is dehydrated, the mud cake has a high water content, which can be used for sludge resource utilization. What's the impact?

Most of the sludge you see in daily life has not been treated by sludge dehydrators, and the water content is very high. The water in the sludge is actually composed of four parts, the surface adsorbed water and capillary bound water account for about 10% of the water in the sludge, and various capillary bound water accounts for about 20% of the total water in the sludge. In sludge, empty water accounts for about 70% of the total water in sludge.

The sludge conditioning agent is used to adjust the sludge into the filter chamber of the filter press, and the pressure is about 1.0MP, which is conducive to effectively filtering the free water in the sludge. After the accumulated sludge in the filter chamber reaches the design capacity of the filter press, it enters the high-pressure press stage. The final dryness of the press dehydrated sludge is closely related to the effect of chemical conditioning modification, as well as the filling degree of the press chamber, the increase rate of press pressure and the retention time of press pressure. When the chemical conditioning achieves better results, the use of high pressure feeding and high pressure pressing can shorten the time of the entire press section and improve production efficiency. Automatic discharge and backblowing of filter material (filter cloth) are completed at the same time, which can reduce the labor intensity of the controller, and improve the efficiency of the completion of the action, and maintain the effect of the filter cloth to intercept sludge and permeable water.