3results about How to "Good permeability" patented technology

This application relates to the field of activated carbon fiber technology, specifically disclosing a method for preparing highly adsorbent activated carbon fibers. This application uses oxidized modified viscose fiber as a precursor, which is then activated by plasma and subsequently seeded with nanocrystals to form a carbon-silicon composite intermediate. After carbonization, the silica is removed by hydrofluoric acid etching, resulting in a relatively continuous hierarchical porous structure. Plasma post-treatment is then used to adjust the surface properties of the activated carbon fiber surface and the pores. Compared to activated carbon fibers prepared using conventional phosphoric acid activation methods currently available on the market, the activated carbon fibers obtained in this application improve the mass transfer efficiency of macromolecular pollutants through their hierarchical porous structure. Furthermore, the pores, after plasma post-treatment, can fully utilize their adsorption and binding capacity for polycyclic aromatic hydrocarbons (PAHs). Therefore, the activated carbon fibers obtained in this application have a higher adsorption capacity for PAHs.

The utility model relates to graphite heat exchanger vacuum pressure impregnation process equipment belongs to graphite heat exchanger vacuum pressure impregnation technical field, including impregnation jar and equipment frame, the equipment frame outside is provided with the pretreatment assembly for impregnant and material pretreatment, the pretreatment assembly includes the treatment jar fixedly connected in the equipment frame top, cleaning tank and drying box, the top of treatment jar is fixedly connected with drive motor, the output shaft of drive motor is fixedly connected with stirring shaft, the left and right sides of treatment jar inner wall all are fixedly connected with electric heating tube, the bottom of confluence box is fixedly connected with shower nozzle, the top of drying box is fixedly connected with fan, the inboard of drying box is fixedly connected with air heating pipe. This graphite heat exchanger vacuum pressure impregnation process equipment, through setting up pretreatment assembly, finally, to impregnant and material pretreatment, thereby shortens technological process time -consuming, better satisfy production demand.

The utility model relates to the field of soil remediation spraying, disclose a soil remediation reagent uniform spraying device, including storage bucket and shallow, the storage bucket fixed connection is in the top of shallow, the right side fixed connection of storage bucket has the water pipe, the water pipe is away from the one end of storage bucket and is provided with range adjusting assembly, the range adjusting assembly includes support frame and sprayer tray, the support frame fixed connection is in the top of shallow right side close to storage bucket, and the water pipe penetrates and fixedly connected in the top of support frame and sprayer tray intercommunication arrangement. In the utility model, through the adjustment block drive two groups of support disc rotation, make two groups of baffle synchronous rotation, realize the shielding or open adjustment of two groups of sprayer tray right side spraying mouth, and can lock the angle through the tightening bolt after adjusting in place, can thus according to different operation scene flexible adjustment the range of spraying coverage, avoid overlapping coverage or omission, ensure that the reagent is evenly distributed to the target soil layer.