2results about How to "Regulate fluidity" patented technology

This application relates to a sludge dewatering equipment and process for sludge treatment, belonging to the technical field of sludge treatment. It includes a flocculation tank and a feeding assembly and a stirring assembly disposed on the flocculation tank. The feeding assembly is used to add flocculant, and the stirring assembly is used to mix the added flocculant evenly. The stirring assembly includes an axial flow cylinder coaxially disposed within the flocculation tank. The axial flow cylinder includes a axial pusher section and a vortex section fixed from top to bottom. The diameter of the axial pusher section is larger than the diameter of the vortex section, and there is a smooth transition between the axial pusher section and the vortex section. Rotatable and axially movable propulsion blades are movably disposed within the flocculation tank. The flocculation tank is also equipped with an adjusting component for adjusting the height of the propulsion blades according to sludge of different viscosities, and a driving component for driving the propulsion blades to rotate. This application has the effect of improving the uniformity of flocculant mixing and the flocculation effect of sludge, thereby improving the sludge dewatering efficiency and reducing the risk of environmental pollution from dewatered sludge.

This invention discloses a recycled mortar concrete, its preparation method, and its application, belonging to the technical field of recycled mortar concrete. The method involves modifying activated hydrophobic aerogel powder with 3-(methacryloyloxy)propyltrimethoxysilane, then incorporating the resulting modified aerogel powder containing double bond segments into a gel system for crosslinking. Water is added for dilution, resulting in a modified liquid with a solid content of 3-4%. Recycled aggregate is impregnated with the modified liquid to obtain modified recycled aggregate. The modified recycled aggregate, silicate cement, fly ash, quartz sand, water-reducing agent, and water are mixed to obtain recycled mortar concrete. The modified recycled aggregate in the recycled mortar concrete exhibits a crosslinked network on its surface, which acts as a thickener and retarder, regulating the fluidity of the concrete. Furthermore, the hydrophobic modified aerogel powder and crosslinked network seal and strengthen the pores of the recycled aggregate, blocking moisture and improving the freeze-thaw resistance and compressive strength of the recycled mortar concrete.