21 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 dye recycling device based on water-free printing and dyeing of cotton cloth, which belongs to the technical field of printing and dyeing dye treatment and is characterized by comprising a stabilizing table, an auxiliary structure is bolted on the inner side of the stabilizing table, and a treatment structure is movably connected on the inner side of the auxiliary structure. The top of the storage box is movably connected with the bottom of the mounting cover, the top of the mounting cover is fixedly connected and communicated with the bottom of the proportioning block, the inner wall of the proportioning block is rotatably connected with the outer wall of the rotating block, the inner side of the mounting cover is movably connected with the outer side of the plugging block, and the outer side of the plugging block is connected with the inner side of the storage box in an inserted mode. The use of water and the generation of waste water are reduced in the existing waterless printing and dyeing, but if the used organic solvent is directly discharged into the environment, the environment can still be polluted, the dye can be recycled, and the resource consumption and the generation of waste can be reduced.

The supercritical CO2 dyeing recovery and separation system comprises a separation kettle, a temperature drop circulation assembly and a central controller, the separation kettle is provided with a movable cylinder and a positioning cylinder which can be driven by a lifting mechanism to be close to or away from each other, and a filter membrane capable of separating a cylinder channel is arranged between the movable cylinder and the positioning cylinder; the filtering membrane is wound and unwound by a winding and unwinding device so as to replace a filtering section arranged in a barrel channel, the barrel channel is used for feeding and discharging through a feeding connecting pipe and a discharging connecting pipe which extend out of the shell respectively, and the temperature in the shell is regulated and controlled by a temperature reduction circulating assembly; the central controller is electrically connected with the separation kettle and the temperature drop circulation assembly, automatic section changing of the filtering membrane can be achieved through the winding and unwinding device, and only low-frequency membrane cylinder changing is needed manually, so that maintenance cost and production interruption can be reduced on the basis that CO2 recovery purity is guaranteed.

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 utility model discloses a system suitable for recycling dye in decolorized waste liquid, which relates to the technical field of textile dye stripping and recycling and comprises a reactor, a dehydration helix a, a dilution helix, a dehydration helix b, a self-cleaning filter a, a dye separation device a, a self-cleaning filter b and a dye separation device b, the dehydration helix a, the dilution helix, the dehydration helix b, the self-cleaning filter a and the dye separation device a are sequentially arranged on the rear side of the reactor station; the self-cleaning filter b and the dye separation device b are sequentially arranged on the rear side of the station of the dehydration screw b; the dye separation device a is connected to a decoloring solution blending tank; the dye separation device b is connected to the dilution screw and is connected to the decolorizing solution preparation tank for supplementing water; and the desorption liquid conveying pipelines of the dye separation device a and the dye separation device b are connected to a purification and concentration station. According to the dye stripping device, dye can be thoroughly stripped in the process of recovering the dye of old textiles, and the efficient recovery of the dye is realized.

The present application relates to a device and method for recycling wastewater and dye used for dyeing chemical fiber fabric, belonging to the field of sewage treatment technology. The device comprises a regulating and storing tank, a collecting box I, a resolving barrel, a collecting box II, a recovery tank I and a recovery tank II. The regulating and storing tank homogenously treats the dyeing wastewater through a stirring shaft, and sends the wastewater into the settling tank of the collecting box I through a water pump I. The dosing assemblies I and II add coagulant and coagulant aid to form floc to precipitate, and the supernatant enters the collecting tank. The two containing boxes in the resolving barrel are filled with activated carbon, and the supernatant is delivered through a water pump II to adsorb dye by the activated carbon. The saturated activated carbon is resolved by the resolving assembly, and the two containing boxes are alternately used by driving of a motor. The resolved dye liquid enters the recovery tank I through the collecting box II for recovery. The treated clean water is sent into the recovery tank II through a water pump IV for recycling. The present application realizes efficient recycling of dye and wastewater, improves the treatment continuity and resource utilization rate, and reduces the production cost and environmental pollution.

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 waste textile decolorizing dye recovery device. The waste textile decolorizing dye recovery device comprises a bottom plate, a supporting table is arranged at the upper end of the bottom plate, a reaction box is installed on the supporting table, a discharge pipe is arranged at the lower end of the reaction box, the other end of the discharge pipe is installed on a pump machine, a discharge-in pipe is further arranged on the pump machine, and the other end of the discharge-in pipe is communicated with the reaction box. A drain pipe is arranged on the discharge pipe, an opening is formed in the upper end of the reaction box, a top cover is mounted at the opening, a through hole is formed in the top cover, and an adsorption assembly is arranged in the reaction box. According to the waste textile decolorizing dye recovery device, the effect that dye wastewater is circularly adsorbed by the filtering assembly is achieved by arranging related assemblies such as the pump, the pollution of the dye wastewater after dye particles are adsorbed is reduced, and the dye wastewater can be used for other water of a dye factory; meanwhile, the cost of directly treating the dye wastewater by a sewage treatment plant is reduced.

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.

The present application relates to a kind of textile printing and dyeing wastewater waste gas resource processing and waste heat recycling system, including wind light dual-energy power supply heating system, dust evaporator, condenser, secondary evaporator, steam heater;Dust evaporator is used for waste gas dust removal and wastewater evaporation;Condenser is used to make with high-temperature high-concentration dyeing wastewater counter-current heat exchange after dust removal waste heat condensation distilled water, the distilled water formed and the cooling water generated are recycled for dyeing water washing;High-temperature high-concentration dyeing wastewater after heating enters secondary evaporator and forms steam;Steam heater adopts wind light dual-energy power supply heating system to provide heat source for secondary evaporator, and the steam discharged by secondary evaporator is heated to form superheated steam, and the superheated steam is used as the heat source of secondary evaporator and is used for setting machine / curing machine;The present application uses clean energy and waste heat to supply heat, wastewater waste gas waste heat is treated cooperatively, and heat energy and water are closed-loop circulation, realize the dye recovery in dyeing wastewater, save resources while reducing carbon emissions.

The invention discloses a simple preparation and high-efficiency recovery method of polymethylene blue based on composite printing and dyeing wastewater, which realizes high-efficiency recovery of polymethylene blue in composite printing and dyeing wastewater through a multi-stage grid, an adjusting tank, a reaction tank, a sedimentation tank and a dehydration room. Adjusting the composite printing and dyeing wastewater in the adjusting tank to be acidic, reacting the composite printing and dyeing wastewater with peroxydisulfate in a reaction tank, performing high-speed stirring, low-speed stirring and standing separation, decolorizing liquid-phase methylene blue, and depositing solid-phase polymethylene blue; under the action of the sedimentation tank, solid-phase polymethylene blue forms a filter cake, and the filter cake can be stored in the shade for later use after being subjected to vacuum drying. Compared with other dye recovery methods, the method has the advantages of simplicity in operation, low cost, safety, high efficiency, no secondary pollution, wide applicable concentration range and the like, realizes specific recovery of polymethylene blue in the composite printing and dyeing wastewater, and has wide engineering application prospects.

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.

The invention provides cloth dyeing equipment. The cloth dyeing equipment comprises a tank body and a cloth discharging device, a cloth inlet is formed in one end of the tank body, a cloth outlet is formed in the other end of the tank body, and the cloth outlet device is connected to the top of the cloth outlet; the cloth discharging device comprises a supporting frame, a rotating roller, a driving motor, a vacuum pump, a vacuum pipe, a liquid suction pump and a liquid suction pipe, the driving motor is fixedly connected to the supporting frame and used for driving the rotating roller to rotate, an absorption cavity is formed in the rotating roller, a plurality of absorption holes communicated with the absorption cavity are formed in the outer wall of the rotating roller, and a liquid collecting groove is connected into the absorption cavity; one rotating shaft is provided with an air suction hole, the other rotating shaft is provided with a water suction hole, and the air suction end of the vacuum pump is connected with the air suction hole through a vacuum pipe. A rotating roller in the cloth discharging device is matched with a vacuum pump to form a negative pressure environment, redundant dye liquor on the surface of the cloth can be rapidly adsorbed through suction holes in the outer wall, meanwhile, the adsorbed dye liquor can be collected in time through a liquor collecting groove in an absorption cavity and guided out through a liquor suction pump, and the drying efficiency of the dyed cloth is improved while dye recycling is achieved.

The application discloses a preparation method of an anti-pollution permeation membrane and water treatment application. The preparation method comprises the following steps: PAN, LiCl and UiO-66-(COOH)2 are added into an NMP solvent to configure a casting solution, magnetic stirring is carried out at 60 DEG C for 12 hours, and a PAN / LiCl / UiO matrix membrane with a PET non-woven fabric as a support layer is prepared by a phase inversion method. Then, the matrix membrane is subjected to hydrophilic modification and improvement of a pore structure by using Ar plasma, a polyamide active layer is prepared by an interfacial polymerization method, and PL solution is prepared to perform graft modification on the polyamide layer. The anti-pollution permeation membrane prepared by the method can realize synchronous dye recovery and draw solution reuse in printing and dyeing wastewater, improve the performance of the permeation membrane, relieve membrane pollution by vibration, and restore the membrane flux of the polluted membrane by modified micro-bubbles.

The invention relates to a wastewater reuse and dye recovery device and method for chemical fiber fabric dyeing, and belongs to the technical field of sewage treatment. The device comprises a regulation and storage pool, a collection box I, an analysis barrel, a collection box II, a recovery pool I and a recovery pool II. Dyeing wastewater is homogenized by the storage tank through a stirring shaft and is fed into the sedimentation tank of the collection tank I through a water pump I, coagulant and coagulant aid are added into the dosing components I and II to form floc sediment, and supernate enters the collection tank. Two containing boxes in the analysis barrel are filled with activated carbon, supernate is conveyed through a water pump II, and dye is adsorbed through the activated carbon; the analysis assembly analyzes the saturated activated carbon, the two containing boxes are driven by a motor to be alternately used, and analyzed dye liquid enters the recycling pool I through the collecting box II to be recycled. The treated clear water is fed into a recycling pool II through a water pump IV for recycling. According to the method, the dye and the wastewater are efficiently recycled, the treatment continuity and the resource utilization rate are improved, and the production cost and the environmental pollution are reduced.

The utility model discloses a liquid-saving type cloth dyeing device. Comprising a dyeing tank, a pre-liquid-removal guide plate arranged at the cloth outlet end of the dyeing tank, an extrusion roller set arranged behind the pre-liquid-removal guide plate, an auxiliary dye recovery device arranged behind the extrusion roller set and a dye collection system arranged below the extrusion roller set and the auxiliary dye recovery device. Wherein the pre-liquid-removing guide plate is provided with a guide slope inclining towards the interior of the dyeing tank, and the extrusion roller set comprises an upper extrusion roller, a lower extrusion roller and an extrusion pressure adjusting mechanism. According to the liquid-saving type cloth dyeing device, through a three-stage dye recovery system formed by the pre-dewatering guide plate, the extrusion roller set and the auxiliary dye recovery device, stepped recovery of dye liquor carried by cloth is achieved, and meanwhile the extrusion pressure adjusting mechanism can accurately adjust the extrusion force according to different cloth characteristics; the problems that a traditional dyeing device is serious in dye loss, incomplete in recovery and inaccurate in extrusion control are effectively solved.

The invention discloses a supercritical carbon dioxide anhydrous decoloration system and method for polyester fabrics, which utilizes supercritical carbon dioxide fluid to replace traditional water media and chemical solvents to realize efficient decoloration treatment of the polyester fabrics, and avoids the problem of wastewater pollution and the use of harmful chemical solvents. And meanwhile, the supercritical carbon dioxide fluid can be recovered and reused after being decolored, so that efficient utilization of resources is realized. After decolorization, the color intensity deviation sigma K / S of the polyester fabric is less than or equal to 0.20, the decolorization rate is more than or equal to 95%, the breaking strength loss rate is less than or equal to 10%, and the dye recovery rate is more than or equal to 85%. Besides, after the polyester fabric is decolored for more than 20 times, the decoloring efficiency can still be kept to be greater than or equal to 95%, the stability and the economical efficiency are ensured, the efficient decoloring of the polyester fabric is realized, the method has the advantages of simple process, high environmental protection property, small fiber damage and the like, and the problems of high water consumption, high pollution, large fiber damage and the like in the decoloring treatment process of the polyester fabric are solved.

The application discloses a textile waste dye separation and recovery device and belongs to the technical field of dye recovery. The device comprises a base platform, a dye recovery pool, a dye separation box and a distillation tower. A discharge pipe is arranged at the bottom of the side surface of the distillation tower. An arc-shaped separation net is fixedly installed in the middle of the dye separation box. A sediment cleaning assembly is arranged above the arc-shaped separation net on the dye separation box. A waste dye guide pipe with a valve, three additive guide pipes with valves and an air pipe with a valve are fixedly installed on the side surface of the dye separation box. The device can realize the sedimentation of harmful substances and non-recyclable substances in the dye, ensure the speed of the sedimentation reaction and avoid the clogging of the arc-shaped separation net. Meanwhile, the solid cleaning process has little influence on the dye separation process, does not cause the pause of the sedimentation reaction and solid-liquid separation, ensures the treatment efficiency of the waste dye and realizes the effective recycling and utilization of the textile waste dye.

The utility model relates to the technical field of dye recovery, in particular to disperse dye safe recovery equipment which comprises an outer cylinder, a filtering assembly and a collecting assembly. The filtering assembly is fixedly installed in the outer cylinder and used for filtering impurities and settling the dispersed dye, multi-layer fine filtering is achieved through multi-layer filtering, and the dye is filtered out of the water body; and the collecting assembly is arranged in the outer cylinder and is used for being matched with the filtering assembly to vibrate the filtered and settled dye and collecting and recycling the dye. Compared with the prior art, the problems that in the prior art, dye recovery resources are excessively used, and the purification rate is low are solved.

The embodiment of the invention provides an intelligent monitoring management method and system for a sodium hypochlorite production process, and the method comprises the steps: scanning dye recovery water to obtain first scanning data, and matching a preset dye database to obtain a dye type and a first dye concentration; performing secondary scanning on the mixed solution to obtain second scanning data, and matching a preset dye database to obtain a dye type and a second dye concentration; obtaining the corrected dye concentration through a dye calculation model; electrolytic parameters are collected, and physical quantities are obtained through calculation; comparing the abnormal characteristics of each physical quantity through a threshold value; converting the abnormal feature into an abnormal probability; and finally executing hierarchical response. According to the method, the fuel recovery water data and the electrolysis parameters are intelligently monitored, the abnormal probability is accurately estimated in combination with the abnormal calculation model, and graded early warning is performed, so that the abnormity can be found in time, the stability, the safety and the management efficiency of the sodium hypochlorite production process are improved, and intelligent control and efficient operation and maintenance of the production process are realized.

The invention relates to the technical field of textile dyeing and finishing, in particular to a method for recovering hydrolyzed reactive dye and dyeing wool fabric with little water, which comprises the following steps: preparing an aminated magnetic almond shell adsorbent, and extracting the hydrolyzed reactive dye; the method comprises the following steps of: dyeing 0.5 g of wool fabric, 3% (o.m.f) of hydrolytic reactive dye, a bath ratio of 1: 50 and 60 DEG C in a less-water system of water and a deep-eutectic solvent LaBet in a ratio of 3: 7, heating to 80 DEG C, carrying out shock dyeing for 1 hour, washing with water after dyeing, soaping, and drying. Wherein LaBet is a eutectic solvent prepared by mixing anhydrous lactic acid and betaine according to a molar ratio of 19: 1, heating to a certain temperature, magnetically stirring for 2 hours until a faint yellow transparent liquid is formed, and cooling to normal temperature. According to the present invention, the waste by-product during nut processing is researched to prepare the adsorbent, the hydrolysis reactive dye is extracted and recovered, and the dyeing process of the three-primary color hydrolysis reactive dye in the DES chromosome system on the wool fabric is optimized by using the single factor method so as to achieve the recovery of the waste resource;