4results about How to "Reduce flocculation" patented technology

This invention relates to a green resource utilization process for contaminated sludge, comprising: river dredging sludge, lake and reservoir dredging sludge, culvert dredging sludge, and various types of sludge. After passing through a screen, the contaminated sludge is transported to a heavy metal release treatment facility. Following release treatment, it is transported to a Fenton process to treat organic pollutants, then to an activated particle filter to remove heavy metals. The remaining sludge is flocculated, and the flotation scum and sediment are collected and transported to a CO2 carbonization process. Finally, it is transported to a mechanical dewatering process. The resulting solids are used as improved soil for resource utilization, and the dewatered filtrate is used as reclaimed water through ion exchange.

The application relates to the technical field of petroleum drilling fluid treating agents, and discloses sulfonated lignite applied to drilling fluid and a preparation method thereof, the preparation method being as follows: modified lignite and modified 4,4'-diamino diphenyl ether are mixed, the temperature is increased to 120-140 DEG C, and stirring reaction is carried out for 1-2 hours, then modified diethanolamine is slowly added dropwise, and the reaction is continuously carried out for 0.5-1 hour, the reaction mixture is poured into a mold, the temperature is increased to 160-180 DEG C, and the temperature is kept under 10-20 MPa for 2-4 hours, and sulfonated lignite applied to drilling fluid is obtained after crushing. The sulfonated lignite prepared by the application has good high-temperature stability and salt resistance.

The invention relates to the technical field of cloth pulp machines, and provides a cloth pulp machine for controllable formation of multiple layers of fibers and a control method of the cloth pulp machine. Comparing the layer pressure Pi with a target pressure Ptarget; and controlling the pulp distributor according to the comparison result. The pulp distribution machine is controlled through the layer pressure Pi, layered independent pulp supply can be achieved, controllability of composition and thickness of each layer of fibers is guaranteed, fiber flocculation and local deposition are remarkably reduced, the uniformity of paper sheets is improved, coupling of interlayer adjustment is avoided, and sensitivity and reliability of system adjustment are guaranteed.

The invention discloses a high count yarn bobbin unwinding cotton fiber attachment prevention method and device based on microenvironment regulation and control, relates to the technical field of textile machinery, and aims to solve the problem that yarn tension is concentrated to cause fiber collection due to the fact that a traditional tensioner cannot realize dynamic tension regulation. The device specifically comprises a rear frame and a front frame which are connected, an air cylinder is used for actively applying longitudinal reciprocating motion to a primary sequence roller, so that the distance between the primary sequence roller and a sequence roller is changed, different tension control is achieved when yarn is unwound, meanwhile, the vibration buffering effect on the primary sequence roller is achieved through two-way elastic fixing at the two ends of the primary sequence roller, and the yarn unwinding effect is improved. Therefore, vibration generated when the yarn is unwound is weakened, the cotton fiber collecting phenomenon caused by concentrated tension at the tail of the high-count yarn bobbin is further remarkably reduced, and the purposes of stably and reliably unwinding and preventing cotton fibers from being attached to the yarn can be achieved through combination of the two.