5 results about "Dye recovery" patented technology

The application relates to the technical field of cloth printing and dyeing, and particularly relates to a dye recovery type industrial textile cloth printing and dyeing device. The device comprises a printing and dyeing shell, a fixed frame fixedly connected in the printing and dyeing shell, a sliding frame slidingly connected to the fixed frame, a fixed rod fixedly connected to one side of the sliding frame, two limiting blocks slidingly connected to one side of the fixed frame, a sliding rod slidingly connected to one side of the fixed frame, two guide rollers rotatably connected to one side of the fixed frame and one side of the sliding frame, two sliding blocks slidingly connected to the fixed frame and the sliding frame, and extrusion rollers rotatably connected between the two sliding blocks on the same side. The two extrusion rollers reciprocally move to reciprocally extrude the cloth, remove the tiny bubbles in the cloth, make the dyeing liquid completely immerse in the cloth, prevent the dyed cloth from having color difference or spots, and ensure the appearance quality of the final dyed cloth.

The utility model discloses a printing and dyeing machine dye recovery device, including frame and vat, vat is fixed at the bottom of frame, and textile realizes entering vat again and removes from vat under the drive of guide roller group, the frame be provided with scraper and vibrating mechanism, and textile removes from vat and leans against the upper end of scraper after, and vibrating mechanism drives scraper to vibrate up and down, the utility model discloses through vibrating mechanism drive scraper vibration to textile produces impact, can realize the impurity and dye of adhering on scraper and shake off and reduce the risk of jam, and can improve the dye's removal rate.

The application relates to a kind of polyether ether ketone hollow fiber loose nanofiltration membrane and its preparation method and application, belong to nanofiltration membrane technical field.Solve the problem that the mechanical strength and flux of existing polyether ether ketone hollow fiber nanofiltration membrane cannot be considered.The method of the present application, first dry polyether ether ketone powder and polyetherimide powder are blended, then melt granulation, then the obtained blended resin particles are extruded, then the obtained blended precursor hollow fiber is heat treated, extracted into selective extractant to extract pore, finally the obtained nascent polyether ether ketone hollow fiber is first cold stretched, then heat stretched, to obtain nanofiltration membrane.The nanofiltration membrane has high strength, high flux and excellent acid, alkali and organic solvent corrosion resistance, the rejection rate of macromolecular weight (>=600Da) dye molecules is more than 95%, and the rejection rate of monovalent salt such as sodium chloride is less than 10%.It is suitable for dye desalination, printing and dyeing wastewater treatment and high value-added dye recovery and other separation processes in harsh environment.

The utility model discloses a kind of blended yarn printing and dyeing equipment, including printing and dyeing bin and separation holding tray, separation holding tray is moved in printing and dyeing bin, blended yarn is placed on separation holding tray, separation holding tray includes connecting block, block, inclined rod, side filter screen and bottom disc, the bottom disc is moved in printing and dyeing bin, the block is located at the top of bottom disc, the block is circular table structure, the side filter screen is located at the top of bottom disc and is set on the outside of block, the inclined rod is evenly distributed and is located on the inclined plane of block, the connecting block is located at the top of block, the utility model is used for placing blended yarn using separation holding tray, using the circular table structure of block facilitates dye in blended yarn backflow to printing and dyeing bin, realizes dye recovery, solve the blended yarn after printing and dyeing in background art There are more dyes, but the dye carried by blended yarn cannot be collected, thereby leading to the loss amount of dye during printing and dyeing processing is larger, improve the consumable cost of printing and dyeing problem.

This invention relates to the field of dyeing and printing wastewater pollution control equipment, specifically to a dye recovery and oxidation degradation device for dyeing and printing wastewater. The device includes an oxidation tank and a separation cylinder. The separation cylinder is horizontally positioned below the oxidation tank. Inside the separation cylinder are a movable cover and a pressure plate capable of horizontal sealing and sliding. A filter press chamber is formed between the pressure plate and the movable cover, and this chamber is connected to the bottom of the oxidation tank. A core tube is connected to the side of the movable cover away from the pressure plate, and a sealing plate is provided on the top side of the movable cover that moves laterally with it. By integrating the oxidation tank and the separation cylinder, the sludge pit at the bottom of the oxidation tank is directly connected to the feed pipe of the separation cylinder, eliminating the need for additional auxiliary equipment such as sludge lifting pumps and conveying pipelines. A hydraulic cylinder drives the movable cover to move laterally, creating a filtration and squeezing effect, simultaneously completing the sedimentation, cake pressing, and water filtration processes. Furthermore, the volume of the drainage cavity formed by the sleeve and core tube continuously increases, creating a negative pressure suction effect, which helps the filter plate quickly discharge water, ensuring efficient filtrate collection.