12results about How to "Avoid recycling" patented technology

This invention discloses a resource recovery system for dredged sediment treatment based on ultrasonic extraction and flotation synergy, comprising: a pretreatment unit, a first-stage ultrasonic extraction reaction unit, a second-stage solid-phase adsorption reaction unit, a third-stage flotation separation unit, a dewatering unit, a residual water treatment unit, and a nitrogen and phosphorus recovery unit. It also discloses a resource recovery method for dredged sediment treatment based on ultrasonic extraction and flotation synergy. This invention solves the problems of low pollutant removal rate, high risk of secondary pollution of dredged soil, and limited resource recovery in traditional dredged sediment treatment. Through the synergistic effect of multiple units including "ultrasonic-liquid-solid-phase adsorption-micro-nano bubble flotation," it achieves efficient release of nitrogen and phosphorus, simultaneous removal of microplastics, rapid separation of clean sediment from polluted phases, and recovery of nitrogen and phosphorus for fertilizer production and resource recovery of clean sediment. The entire process is green and low-consumption, suitable for compact layout on water or near shore, and can simultaneously meet the requirements of sediment reduction, harmlessness, and resource recovery.

The present application belongs to the technical field of pesticide residue detection method, and particularly relates to a method for determining the chlorothalonil residue in fruits and vegetables, comprising the following steps: S1, extracting the fruit and vegetable sample by using an alkaline extraction solution to obtain an extraction solution; S2, adding a garlicin solution to the extraction solution; S3, adding a purification filler to the conversion solution, vortexing, centrifuging, filtering to obtain a to-be-tested solution; S4, using an ultra-high performance liquid chromatography-tandem mass spectrometer to detect the concentrations of mercaptochlorothalonil and 4-hydroxychlorothalonil in the to-be-tested solution, and calculating the total residue of chlorothalonil in the sample. The present application breaks through the traditional idea of inhibiting the conversion of chlorothalonil, actively promotes the complete and quantitative conversion of chlorothalonil into a single derivative through "alkaline extraction + exogenous garlicin catalysis", changes the complex and uncontrollable conversion process into a controllable and quantitative chemical reaction, and avoids the problems of low recovery rate and false negative caused by incomplete or unmeasurable conversion in principle.

The invention relates to a method for recovering nickel and cobalt from cobalt nickel hydroxide slag. The method comprises the following steps: mixing the cobalt nickel hydroxide slag with an ammonium solution, and carrying out ammonia leaching reaction to obtain an ammonia complexing solution; the ammonia complexing solution is sequentially subjected to oxidation decomplexing and a first sulfuration reaction, and a manganese and copper removal ammonia complexing solution is obtained; the manganese and copper removal ammonia complexing solution is subjected to a reduction reaction to obtain nickel-cobalt powder and a zinc ammonia complexing solution; the zinc-ammonia complexing solution is subjected to a second vulcanization reaction to obtain an ammonium solution, and the ammonium solution is recycled; according to the method, nickel and cobalt in cobalt nickel hydroxide are efficiently recycled, the purity of nickel and cobalt powder preferably reaches 99.5% or above, the recovery rate of nickel preferably reaches 94.2% or above, the recovery rate of cobalt preferably reaches 91.8% or above, and the method is simple in technological process, low in cost, environmentally friendly and good in industrial application prospect.

The application provides a factory building three-dimensional modeling method and system based on a module library, and belongs to the technical field of three-dimensional modeling and human-computer interaction. The method comprises the following steps: opening a first factory building three-dimensional modeling structure file based on a first three-dimensional modeling application program on a first device; uploading a first subcomponent in a first format to a module library after the first editing of the first subcomponent in the structure file; downloading the first subcomponent from the module library for second editing by a second device; and configuring a second three-dimensional modeling application program on the second device, and the second three-dimensional modeling application program performs the second editing. The system comprises a shared module library, a first device and a second device which can communicate with each other, the first device and the second device are configured to support three-dimensional modeling application programs in different editing formats; and the application is based on a unified shared module library, and thus the technical problems of difficult data interaction and poor information flow caused by the deficiencies of the existing three-dimensional modeling technology in data sharing and collaboration are solved.

The utility model relates to a system for efficiently recovering gold, silver and copper from complex gold ore gold extraction tailing broken carbon, which comprises a ball mill, and an ore pulp pump and a grading cyclone which are sequentially connected with the ball mill, and an overflow port of the grading cyclone is sequentially connected with a medicament stirring barrel, a flotation system and a 1 # filter; a filter residue opening of the 1 # filter is sequentially connected with a novel ashing roasting furnace, a reduction smelting furnace, a copper-silver leaching stirring tank and a 2 # filter, a filtrate opening of the 2 # filter is sequentially connected with a silver chloride precipitation stirring tank and a 3 # filter, a filtrate opening of the 3 # filter is sequentially connected with a copper replacement stirring tank and a 4 # filter, and a filter residue opening of the 3 # filter is sequentially connected with a silver replacement stirring tank and a 5 # filter. Flotation equipment, ashing roasting equipment, reduction smelting equipment, selective leaching equipment and the like are ingeniously combined to form a complete complex gold ore gold extraction tailing broken carbon recovery system, and meanwhile, proper technological parameters are matched, so that high-efficiency recovery of valuable metals such as gold, silver and copper in complex broken carbon with high copper, high iron, high calcium and the like is achieved.

The utility model discloses a kind of leaching and impurity removing devices for rare metal smelting, including inlet pipe, drain pipe, device body;The device body further includes shell, inner container, filter bag, base motor, processing mechanism, the inner container of the water hole of side surface setting is rotationally arranged in the inside of shell, filter bag is arranged in the inside of inner container, base motor is fixedly arranged in the inside bottom of shell, the upper output end of base motor is connected with the below of inner container, processing mechanism is arranged in the above of shell, and base motor is connected between the telecommunication of production workshop controller.The function of the utility model is that the rare metal in the material of broken block and powder can be leached and impurity removed simultaneously, the effective separation of leaching liquid and material is achieved, the leaching liquid remaining in material is recovered to the maximum extent, the waste of rare metal element in material is reduced, and the leaching efficiency is improved;Filter bag can prevent material chippings from remaining in device interior during leaching process, and facilitate cleaning and recycling.

The application relates to an anti-fake bottle cap which comprises an outer sleeve, a lower sleeve and a limiting ring, the outer sleeve is provided with a first internal cavity which penetrates the top and bottom of the outer sleeve in the axial direction, a fixing groove is arranged on the inner wall of the outer sleeve, and a limiting gap is arranged on the inner wall of the outer sleeve; the lower sleeve is provided with a clamping jaw and a fixing table, the clamping jaw is used for clamping a target object, and the fixing table is assembled with the fixing groove to lock the outer sleeve and the lower sleeve; the limiting ring is provided with a limiting structure which is used for extending into the limiting gap in the state that the fixing groove and the fixing table are assembled to limit the relative rotation between the outer sleeve and the lower sleeve. The outer sleeve is provided with the fixing groove, the fixing groove is matched with the fixing table arranged on the lower sleeve to be fixed, and the lower sleeve is further provided with the clamping jaw which is used for clamping a glass bottle to firmly fix the bottle cap on the glass bottle; when the bottle cap is pulled up by high temperature or maliciously pulled up as a whole, the bottle opening is damaged or the appearance of the external part is damaged, the consumer is prompted that the bottle cap has been opened, the package material recycling and the like are prevented, and the purpose of preventing counterfeiting is achieved.

The utility model provides an aluminum bar saw which comprises a rack, a moving device, a first clamping device and a water jet cutting device, and a water tank is arranged below the rack; the moving device is hung upside down and is arranged above the rack; the first clamping device comprises a supporting frame, a rolling ring, a first driving assembly, a second driving assembly and a plurality of rollers, the rolling ring is arranged on the supporting frame and rotationally connected with the supporting frame, the supporting frame and the first driving assembly are both arranged at the moving end of the moving device, and the first driving assembly is in transmission connection with the rolling ring; the first driving assembly is used for driving the rolling ring to rotate; the second driving assembly is arranged in the rolling ring, connected with the multiple rollers and used for driving the multiple rollers to clamp the aluminum bar. The aluminum bar cutting device solves the problem that when the radius of an aluminum bar is far larger than that of a cutting disc, traditional cutting equipment is difficult to cut the aluminum bar.

The application discloses a kind of high filling plant fiber reinforced epoxy vegetable oil-based glass-like high molecular composite material and preparation method thereof, and is prepared according to the following steps: (1) the synthesis of aldehyde group-containing intermediate: epoxidized vegetable oil is reacted with aldehyde group-containing compound in the presence of catalyst to obtain aldehyde group-containing intermediate; (2) melt premixing: aldehyde group-containing intermediate obtained in step (1) is melt mixed with dry plant fiber at 140~180 °C; (3) prepolymer formation: diamine compound is added to the mixture of step (2), wherein the molar ratio of amino group to aldehyde group is (1.1~1.6):1, and the mixture is continuously reacted to form a prepolymer; (4) curing forming: the prepolymer obtained in step (3) is subjected to mold forming and curing treatment to obtain a composite material. The application significantly improves the comprehensive performance of epoxy vegetable oil-based composite material, and the raw material source is extensive, and the process is green and environmentally friendly, which has wide application prospect in the field of recyclable high-performance structural materials.

The invention provides an AUV test dual-mode remote communication system and method based on a 4G network, the system comprises an AUV communication terminal, a water surface buoy relay device, a cloud server platform and a shore-based control center, and the method comprises the steps that the AUV communication terminal monitors the water surface wireless or underwater wired signal intensity in real time; and a water surface direct connection communication mode or an underwater buoy relay mode is selected in combination with actual water surface / underwater working conditions. According to the invention, the 4G network is constructed to realize high-bandwidth communication between the AUV on the water surface and the shore base, the wired network is constructed through the power line carrier to realize small-batch and high-priority real-time data interaction during underwater navigation of the AUV, frequent deployment and recovery in the debugging stage of the AUV are avoided, the test efficiency is greatly improved, and the labor intensity and the operation risk are reduced.

The application discloses a continuous synthesis method of 2-chloro-4-amino-5-methylpyridine, which is prepared from 2-chloro-5-methylpyridine as a starting material, and the continuous synthesis of 2-chloro-5-methylpyridine N-oxide is first carried out in a fixed bed reactor by using titanium silicalite catalyst, then the continuous nitration synthesis of 2-chloro-4-nitro-5-methylpyridine N-oxide is carried out in a microreactor by using SO3 / concentrated nitric acid, and the continuous hydrogenation synthesis of 2-chloro-4-amino-5-methylpyridine is carried out in a continuous stirred tank reactor by using Raney nickel catalyst. Through the above three-step continuous reaction, the total yield of 2-chloro-4-amino-5-methylpyridine can reach more than 80%, and the synthesis method is simple, three-waste is less, and has good economic effect and environmental effect.

This invention relates to the field of air drying technology and discloses a refrigerated compressed air dryer, including a dryer body. A compression mechanism is fixedly installed inside the dryer body. A condensation mechanism is fixedly connected to one side of the compression mechanism, and a water vapor separation mechanism is fixedly connected to one side of the condensation mechanism. A water extraction pipe is fixedly connected to one side of the water vapor separation mechanism. A processing chamber is fixedly installed inside the dryer body, and the water extraction pipe is fixedly connected to the top of the processing chamber. Filter plates are symmetrically fixedly installed inside the processing chamber. A scraping assembly is provided on the upper surface of the filter plates. Through the scraping assembly, while the condensate flow direction is switched by the diversion assembly, the bottom of the scraper on the corresponding side moves along the surface of the filter plate, realizing synchronous and coordinated operation of cleaning and filtration. The scraper cleans the impurities accumulated on the upper surface of the filter plate and pushes the impurities outward to the outside of the processing chamber, thereby ensuring the cleanliness of the filter plate surface and the stability of the filtration effect.