2results about How to "Improve filter adsorption effect" patented technology

The utility model discloses a polyethylene sulfone resin production tail gas activated carbon adsorption device which comprises an activated carbon adsorption box, the activated carbon adsorption box is rotatably installed on a support, one end of the activated carbon adsorption box is provided with a tail gas inlet pipe, and the other end of the activated carbon adsorption box is provided with a tail gas exhaust pipe. An activated carbon adding opening and an activated carbon discharging opening are formed in the top end and the bottom end of the activated carbon adsorption box correspondingly, the activated carbon discharging opening is located in the side, close to the tail gas inlet pipe, of the activated carbon adsorption box, and a plurality of baffles are rotationally installed in the activated carbon adsorption box through rotating shafts. According to the activated carbon adsorption device for the tail gas generated in the production of the polyphenyl sulfone resin, partial replacement of the activated carbon is realized through a unique structural design. In the process of replacing the activated carbon, only the part of the activated carbon which is close to the tail gas inlet pipe and has higher saturation is discharged, so that all the activated carbon is prevented from being replaced together, the use amount of the activated carbon is greatly saved, and the production cost is reduced.

This utility model relates to the field of filtration equipment technology and discloses a mother liquor filtration and recovery device for polyacrylamide production. The device includes a filter tank, a base fixedly connected to the lower end of the filter tank, a drain pipe fixedly connected to the lower end of the filter tank and inside the base, a top cover fixedly connected to the filter tank, an upper support plate fixedly connected between the filter tank and the top cover, multiple first positioning baffles fixedly connected circumferentially inside the filter tank, a lower support plate fixedly connected inside the filter tank, and a central positioning column fixedly connected to the center of the lower support plate. An initial filter frame, multiple intermediate filter frames, and a final filter frame are arranged in series, significantly increasing the contact area and contact time between the mother liquor and activated carbon. This allows the mother liquor to fully flow through the activated carbon in each filter frame, improving the filtration and adsorption effect. Simultaneously, the filter frames are limited by the positioning baffles, enabling quick disassembly and assembly, making activated carbon cleaning and replacement more efficient. Combined with a backwash channel, it can also achieve activated carbon backwashing and reagent regeneration, improving activated carbon utilization.