191results about How to "Unique structure" patented technology

The invention discloses a magnetic biochar composite adsorbent as well as a preparation method and water treatment application thereof, and relates to the technical field of adsorption materials. The preparation method consists of a biochar matrix and magnetic particles loaded on the surface and in pores of the biochar matrix, and comprises the following steps: preparation of the biochar matrix: step 1, firstly, selecting a biomass raw material; the magnetic charcoal composite adsorbent has unique structure and performance advantages, abundant pore structures and surface functional groups of the adsorbent can provide a large number of adsorption sites for pollutants, and due to the existence of magnetic particles, after the adsorption process is completed, the adsorbent only needs to be placed in an external magnetic field such as an electromagnet and a permanent magnet, so that the magnetic charcoal composite adsorbent can be used for adsorbing the pollutants. The adsorbent can be rapidly separated from the solution or the suspension, the separation time can be controlled within 1-10 minutes, the recovery efficiency of the adsorbent is greatly improved, the treatment cost is reduced, and the adsorbent can be repeatedly used and has good economical efficiency and environmental protection property.

The invention relates to a bimetallic porphyrin / GO / TiO2 nanotube composite photocatalytic material and application thereof. The bimetallic porphyrin / GO / TiO2 nanotube composite photocatalytic material is prepared by the following preparation method: preparing Ni-CoTCPP; the preparation method comprises the following steps: preparing a bimetallic porphyrin solution, immersing TiO2NTs into the porphyrin solution, stirring, taking out a titanium foil, and drying at room temperature to prepare Ni-CoTCPP / TiO2NTs; and soaking the Ni-CoTCPP / TiO2NTs into the suspension of GO, stirring, taking out the titanium foil, and drying at room temperature to obtain the Ni-CoTCPP / GO / TiO2NTs. The bimetallic porphyrin / GO / TiO2NTs ternary composite material is constructed through the action of porphyrin in photosynthesis, various targets in the field of photocatalytic CO2 reduction are achieved, and selectivity of products can be controlled while photocatalytic activity is improved.

The utility model provides a flying robot device for monitoring a cable-stayed cable, and a breakthrough is brought to the field of monitoring the cable-stayed cable of a cable-stayed bridge. The flying robot device adopts a detachable design, and is high in stability and convenient to transport and carry. The device is unique in structure, the rack adopts a center plate design, the foot stool is stably supported, and the operation flexibility and safety are greatly improved. The climbing mechanism, the deviation preventing mechanism and the image collecting mechanism are arranged, it is ensured that the unmanned aerial vehicle stably and efficiently collects images on the cable, and the problems that in the prior art, operation is inconvenient, and the cable is prone to being damaged are solved. Secondly, the guide wheel is accurately adjusted by the adjusting component, the stability is improved, and the contact of the device with the cable is reduced as much as possible; in addition, the anti-collision mechanism reduces shutdown or maintenance time caused by collision, the flying robot device can execute tasks for a longer time, operation efficiency is improved, and more efficient, accurate and safe cable-stayed cable monitoring is achieved.

The invention relates to the technical field of water conservancy projects, in particular to a water conservancy project sewage filtering device which can effectively intercept and remove suspended impurities and silt in a water body through an impurity blocking mechanism, a locking unit, a vertical pendulum control unit and a scrubbing assembly, so that the filtering efficiency is improved; and all-directional filtering and cleaning of large floating objects, small suspended impurities and silt in a water body are realized.

The invention discloses polyurethane resin with a super-hydrophobic surface and a preparation method of the polyurethane resin, and belongs to the technical field of modified polyurethane materials. According to the invention, 2, 2 '-diallyl bisphenol A and a fluorine-containing thiol monomer react to introduce a fluorine-containing carbon chain, and then fluorinated modified 2, 2'-diallyl bisphenol A and tetramethoxysilane are used for treating nano zinc oxide, so that the content of active oxygen groups is reduced, a siloxane network structure is formed, the action with water molecules is reduced, and the hydrophobicity is improved. Secondly, the 2, 2 '-diallyl bisphenol A reacts with amino propyl isobutyl POSS to generate a benzoxazine structure, the POSS structure is introduced, the nano-size effect of the benzoxazine structure fills limited movement between molecular chains, a cage-shaped structure serves as a cross-linking point, the mechanical property is improved, and hydrophobicity is achieved. When polyurethane is prepared, 3, 3-bis (hydroxymethyl) azetidine and a benzoxazine structure are subjected to ring opening crosslinking, bonding, dispersity and stability of fluorinated modified nanoparticles and a matrix are enhanced, a complex network structure is formed, the surface roughness is increased, the water contact area is reduced, and super-hydrophobicity is achieved.

The invention belongs to the field of personal care, and particularly relates to a glycoside derivative flexible liposome and a preparation method and application thereof, the glycoside derivative flexible liposome comprises a main shell material, a humectant, a wrapped raw material, an auxiliary shell material, a preservative and a solvent; the main shell material is phosphatidylcholine, and the auxiliary shell material is polyquaternium-51; the preservative is any one or more of 1, 2-hexanediol, p-hydroxyacetophenone, methylparaben, phenoxyethanol and caprylyl glycol; the moisturizing agent is butanediol; the wrapped raw material is hydroxypropyl tetrahydrofurantriol; the solvent is deionized water. According to the invention, the permeability and penetration depth of the glassine and the concentration of the glassine at a target position are improved by utilizing a flexible liposome wrapping technology, the bioavailability of the glassine is improved, and the addition amount is reduced under the condition of realizing the same tightening and anti-wrinkle effects, so that the cost is reduced.

The invention discloses a carbon nitride loaded metal diatom photocatalytic material as well as a preparation method and application thereof. The invention belongs to the field of photocatalytic materials. The invention aims to solve the technical problems of complex preparation process and low photocatalytic efficiency of the existing metal diatom photocatalyst. The method comprises the following steps: dissolving a nitrogen source and a phosphorus source in deionized water, and carrying out hydrothermal reaction to obtain a precursor; dissolving the precursor in a mixed solvent of alcohol, and then refluxing at constant temperature for a certain time to obtain a pre-product; and adding a metal compound solution capable of forming a conjugated system into the pre-product, carrying out ultrasonic treatment, heating in a constant-temperature water bath kettle, and calcining to obtain the carbon nitride loaded metal diatom photocatalytic material. The obtained photocatalytic material has the advantages of high visible light utilization rate, low photo-induced electron-hole recombination rate and high electron transfer rate. The method is used in the fields of photocatalytic hydrogen production, carbon dioxide reduction and organic matter oxidation.

The invention discloses a chiral 2-azabicyclo [3.1. 1] heptane derivative and a synthesis method of the chiral 2-azabicyclo [3.1. 1] heptane derivative. According to the method, bicyclo [1.1. 0] butane is taken as a raw material and is subjected to a cycloaddition reaction with N-allyl carbonate under the catalysis of Lewis acid and a chiral iridium complex, a series of chiral 2-azabicyclo [3.1. 1] heptane compounds with various structures are synthesized with excellent chemical selectivity, and the product can be further derivatized. The method has the advantages of easily available raw materials, simple operation, mild reaction conditions, and diversity of functional groups.

The utility model discloses a biological fermentation device controlled by internet of things, which relates to the technical field of biological fermentation and comprises a fermentation tank and a driving mechanism, a sealing cover is clamped at the top of the fermentation tank, and a controller with an internet of things connecting device is fixedly mounted outside the fermentation tank. A plurality of detection units in control connection with the controller are arranged in the fermentation tank, a plurality of supply devices in control connection with the controller are arranged on the sealing cover, the detection units can detect the environment in the fermentation tank, and various substances are added into the fermentation tank through the supply devices so as to change the internal environment of the sealing tank. According to the biological fermentation device controlled by the internet of things, an internet of things connecting device is arranged on the controller, and a corresponding monitoring device and a corresponding adjusting device are mounted on the fermentation tank, so that a worker can accurately observe the environmental change in the fermentation process in real time through the internet and adjust the air composition and temperature in time; the accurate control on the fermentation process is realized.

The invention discloses a light-cured epoxy resin / polyurethane anticorrosive coating containing cardanol. The coating is formed by compounding four film forming matters and a photoinitiator, the four film forming matters are respectively light-curable epoxy resin, light-curable polyurethane, cardanol-based polyurethane and a reactive diluent, and the mass ratio of the light-curable epoxy resin to the light-curable polyurethane to the cardanol-based polyurethane to the reactive diluent is 40-60%: 0-40%: 5-40%. The mass of the reactive diluent is 10-30% of the mass of the three resins, and the mass of the photoinitiator is 1.0-5.0% of the mass of the four film forming substances. The preparation method comprises the following steps: reacting cardanol with diisocyanate, and then reacting with polyol to prepare cardanol-based polyurethane; the anacardol-containing light-cured epoxy resin / polyurethane anticorrosive paint is prepared. The cardanol is introduced, so that a good preservative effect can be provided, and meanwhile, the aim of replacing petrochemical raw materials with natural raw materials is fulfilled.

The invention discloses a three-dimensional horizontal stubble cleaning and crushing single body with adjustable height and angle, and belongs to agricultural machinery. A fork-type rocker is hinged to a fixing seat through a hinge pin, a spline shaft is hoisted on the fork-type rocker through a supporting pin, a spline sleeve is sleeved on the spline shaft in a relatively axial moving mode, a fixed hollow motor is fixedly sleeved outside the spline sleeve, and an upper shaft sleeve is fixedly installed on the spline sleeve. A long hanging rod, a middle hanging rod and a short hanging rod which are provided with driving blocks are fixedly installed on an upper shaft sleeve in a hanging mode through six supporting arms respectively, supporting rods A, B and C are fixedly installed on a spline shaft through a lower shaft sleeve, an L-shaped tool apron is installed on the supporting rods A, B and C in a hinged mode, the two ends of a push-pull rod are hinged to the driving blocks and the L-shaped tool apron respectively, and a stubble cleaning smashing cutter is fixedly installed on the L-shaped tool apron. Stepless adjustment of the height position of the stubble cleaning smashing cutter and the penetrating rotary tillage stubble cleaning angle is achieved, three-layer three-dimensional operation can be completed, the structure is novel, unique and reasonable, the application capacity is high, the operation quality is good, cutter abrasion is low, the service life is long, and the operation cost is low.

The invention discloses a self-propelled multifunctional spraying test platform, which relates to the technical field of agricultural machinery and comprises a rack, a walking system, a lifting adjusting device, a spraying system, a control box, a battery pack, a Beidou positioning system and an image processing system, the walking system comprises two electric wheel sets and two universal wheel sets, the two electric wheel sets are symmetrically and fixedly installed on the front side of the bottom of the rack, and the two universal wheel sets are symmetrically and fixedly installed on the rear side of the bottom of the rack. The self-propelled multifunctional spray test platform can realize automatic control and adjustment of spray height, nozzle spacing, spray pressure and operation speed, real-time monitoring of test parameters such as instantaneous spray amount, total spray amount, spray pressure and the like, and through integration of an electromagnetic valve nozzle group, a Beidou positioning system, an image acquisition system and the like, the test parameters of the spray height, the nozzle spacing, the spray pressure and the like can be monitored in real time. The device realizes the early-stage test work of target drug delivery and prescription drug delivery systems, and has the advantages of multiple functions, multiple purposes and convenience in research and development and rapid iteration.

The invention provides core-shell structure nanoparticles with a mediated microenvironment for rheumatoid arthritis treatment and a preparation method thereof.The preparation method comprises the steps that a calcium peroxide precursor is dissolved in absolute ethyl alcohol containing a surfactant, and calcium peroxide nanoparticles are obtained by adding an ammonia water solution and a hydrogen peroxide solution; the preparation method comprises the following steps: carrying out surface treatment on calcium peroxide nanoparticles by using tannic acid to form a tannic acid molecular layer on the surfaces of the calcium peroxide nanoparticles so as to obtain tannic acid modified calcium peroxide nanoparticles; and forming a metal phenolic network shell on the surface of the tannic acid modified calcium peroxide nano-particle by using cerium acetate to obtain the core-shell structure nano-particle.

The invention relates to the technical field of boiler pressure vessel detection, in particular to an ultrahigh pressure vessel plug body sealing test detection device, and aims to efficiently detect and ensure the sealing performance of a pressure vessel sealing plug body. The sealing performance of the sealing plug body is accurately tested, and the safety of the container is ensured.

The invention discloses a catalyst for preparing phenol and guaiacol through lignin depolymerization as well as a preparation method and application of the catalyst. The catalyst comprises a carrier and active components loaded on the carrier, the carrier is activated carbon, and the active components are molybdenum, cobalt and ruthenium. The catalyst is applied to catalytic depolymerization of lignin to prepare phenol and guaiacol, 100% lignin conversion rate can be achieved in an absolute ethyl alcohol solvent in a nitrogen atmosphere under the condition that no extra hydrogen source is needed, the phenol yield is larger than 10%, the guaiacol yield is larger than 25%, the depolymerization capacity and selectivity of the catalyst to lignin can be improved, and the catalyst can be applied to preparation of phenol and guaiacol. Good industrial application prospects are realized.

The utility model discloses a hydraulic oil cylinder pressure test detection device, which relates to the technical field of hydraulic oil cylinder detection, and comprises a box body, a PLC (Programmable Logic Controller) control panel and a driving mechanism, a partition plate is fixedly arranged in the box body and divides the box body into a mounting cavity and an oil storage cavity, and an upper U-shaped frame and a lower U-shaped frame are arranged above the box body at intervals along the vertical direction; a top plate is fixedly mounted at the top of the upper U-shaped frame, and the lower U-shaped frame is fixedly connected with the box body; a plurality of through holes are formed in the tops of the two U-shaped frames in the vertical direction, the through holes are evenly distributed in the three side walls of the U-shaped frames, and lifting rods in transmission connection with a driving mechanism are rotationally installed in the through holes of the lower U-shaped frame. According to the hydraulic oil cylinder pressure test detection device, through cooperative arrangement of the driving mechanism, the lifting rod, the reciprocating driving assembly, the clamping assembly and the pre-pressing oil cylinder, oil cylinders under different strokes and different pressures can be detected, the actual use conditions of the oil cylinder to be detected are fully simulated, and the sealing performance of the oil cylinder to be detected is better detected.

The invention discloses a preparation method of a pyrazol type metal Salen-based MOF (Metal Organic Framework) material. The preparation method comprises the following steps: chelating a pyrazol functionalized Salen ligand with cobalt salt, nickel salt, copper salt and iron salt to generate corresponding M-pyrazol Salen; dispersing and dissolving the obtained M-pyrazolyl Salen and Zn (OAc) 2.2 H2O by using a mixed solution of an organic solvent and H2O; and carrying out hydrothermal reaction on the obtained mixed solution, washing and drying to obtain the M-SalenMOFs. The pyrazole type metal Salen-based MOF synthesized by the invention is novel and unique in structure, easy to regulate and control and high in stability, and has good stability under a strong alkaline condition; the obtained M-SalenMOFs can flexibly change the ligand center metal so as to realize different catalysis.

The invention provides an air pressure change rate sensor based on a paper folding bistable structure and application of the air pressure change rate sensor. The sensor comprises a sensor cavity structure, a storage air bag, a paper folding bistable film, a large-diameter vent hole, a small-diameter vent hole and a laser correlation device. A sensor cavity structure is a closed detection cavity formed by an upper plate, a middle shell and a bottom plate, a paper folding bistable membrane is formed by paper folding, has different rigid areas and is mounted between the upper plate and the middle shell of the sensor, a large-diameter vent hole is used for quickly feeding air, a small-diameter vent hole is connected with a storage air bag for slowly exhausting air, and a laser correlation device is used for interrupting light beam transmission signals when the membrane is deformed. The device can monitor the air pressure change rate in real time, can effectively judge the impact condition in a protection product, is simple in structure, low in cost, high in anti-interference performance and suitable for various complex environments, and provides reliable safety monitoring for the protection product.

The utility model discloses a collecting device for treating cutting waste, which relates to the technical field of cutting waste collection and comprises a material receiving frame placed below a machine tool, a control panel is fixedly mounted on the material receiving frame, a liquid outlet is arranged at the bottom of the material receiving frame, a material storage box is fixedly mounted on one side of the material receiving frame, and a compression mechanism is arranged above the material storage box. A U-shaped guide plate inclining upwards is fixedly mounted at the top of the side wall, close to the receiving frame, of the storage box, and the other end of the guide plate is fixedly connected with the receiving frame. A first filtering assembly and a second filtering assembly are arranged in the material receiving frame in the vertical direction in a spaced mode, and the two filtering assemblies divide the material receiving frame into an upper cavity, a middle cavity and a lower cavity. According to the collecting device for treating the cutting waste, through cooperative arrangement of the first filtering assembly, the compressing mechanism and the inserting plate, cutting fluid can be prevented from entering the material storage box, a compressed block can be rapidly taken out of the material storage box, and the working efficiency is improved.

The invention relates to the technical field of communication cable network cable laying, in particular to a network broadband wiring device which can identify the positions of electrical components in a wiring area, plan a wiring path and realize automatic laying, accurate bending and fixation of network cables by integrating a three-dimensional adjusting mechanism, an image processing assembly, a line folding assembly and a gluing assembly. The wiring efficiency and quality are improved, manual operation is reduced, and the wiring requirements of network cables in different directions are met.

The invention discloses a socketed pile sediment detection device based on high-resolution parametric array sonar detection, and relates to the technical field of detection equipment.The socketed pile sediment detection device comprises an ultrasonic transceiver and a crane and further comprises a self-centering mechanism, the self-centering mechanism comprises a connecting block arranged vertically, a supporting shaft is concentrically and fixedly installed at the top of the connecting block, and the supporting shaft is connected with the ultrasonic transceiver; a baffle is fixedly installed at the top end of the supporting shaft, and the supporting shaft between the connecting block and the baffle is slidably sleeved with a main balancing weight in the vertical direction. A plurality of vertically-arranged centering rods are evenly arranged on the circumferential side of the connecting block in the circumferential direction. According to the socketed pile sediment detection device based on high-resolution parametric array sonar detection, through cooperative arrangement of the crane and the self-centering mechanism, the ultrasonic transceiver can be rapidly located at the axis of a pile hole and is parallel to the axis of the pile hole, the detection efficiency is improved, and the accuracy of a measurement result can be effectively improved.

The automatic bag filling device for a grain box of a community grain combine harvester belongs to agricultural machinery; a driving shaft is installed on a fixed groove plate, a fixedly configured motor is connected to the driving shaft, a ratchet and a telescopic driving plate are fixedly installed on the driving shaft, a grain bag support plate is installed on the fixed groove plate, a column pin fixedly installed on the grain bag support plate is inserted into an involute hole groove on the telescopic driving plate, a support plate arc track is fixedly installed on the ratchet, a bag filling control plate is installed on the support plate arc track, a pawl is hingedly installed on the bag filling control plate, the pawl is in contact with the ratchet, a tension spring is connected to the bag filling control plate and the pawl, a hanging ring is sleeved on a fixedly configured double-track slideway, a grain bag placed on the grain bag support plate is connected to the hanging ring through a connecting clip, and the arc-shaped grain feeding hole on the bag filling control plate connects the grain feeding pipe with the grain bag; the device realizes the automatic bag filling operation of the grain box of the community grain combine harvester, and has a unique and reasonable structure, high operation efficiency, reliable use, and simple and convenient operation.

The utility model discloses a power van battery rack which comprises a storage battery support, a plurality of layer racks are arranged on the storage battery support in the vertical direction, and storage battery placing layers are formed on the layer racks. The storage batteries are arranged in each storage battery placement layer to form a single-layer storage battery pack; limiting assemblies are formed on the left side and the right side of the storage battery containing layer correspondingly and used for limiting the left-right position of the single-layer storage battery pack. The front side and the rear side of the storage battery placement layer are respectively provided with a stop lever assembly for limiting the front and rear positions of the single-layer storage battery pack; wherein the gear lever assembly on at least one side is a detachable gear lever, and the detachable gear lever is detachably and fixedly connected with the storage battery bracket; and each storage battery placement layer is also provided with a storage battery batch fixing assembly in a matched manner, so that simultaneous batch fixing of single-layer storage battery packs is realized. According to the utility model, the stacking installation of multiple layers of storage batteries is realized, the space utilization is improved, the simultaneous batch fixation of all the storage batteries on the storage battery placing layer is realized, the structure is simple, and the installation is convenient.

The utility model discloses a pulse delivery device, which relates to the technical field of grain machinery and comprises delivery equipment and a pulse dust collector, the bottom of the pulse dust collector is sequentially and fixedly provided with a flexible connecting pipe, an ash bucket, a flexible sleeve and a cinder valve along the vertical direction, and the pulse dust collector is communicated with the input end of the cinder valve through the ash bucket, the flexible connecting pipe and the flexible sleeve. The pulse dust collector and the ash bucket are fixedly sleeved with annular tables, a plurality of through holes penetrating through the two annular tables are evenly formed in the top of the annular table on the pulse dust collector, screws are movably sleeved with the through holes, the two ends of each screw extend out of the corresponding through hole, a baffle is fixedly installed at the top end of each screw, and a nut is sleeved with the lower end of each screw in a threaded mode. According to the pulse dust collector, the two ends of the dust hopper are flexibly connected with the pulse dust collector and the dust discharging valve respectively, so that the vibration strength of the vibration motor can be enhanced, and the damage of vibration to elements on the pulse dust collector can be avoided.

The utility model belongs to the technical field of barrel packing, and relates to a novel automobile exhaust treating fluid packing barrel which comprises a barrel body and a sealing cover, the sealing cover is arranged on the barrel body, and grooves which are recessed towards the inside of the barrel are respectively arranged on the periphery of the upper half portion. The groove comprises a first inner wall, a second inner wall and a third inner wall; the second inner wall is located above the first inner wall, and a protruding block is arranged at the intersection position of the third inner wall and the barrel wall. An edge surface convenient to incline is arranged on the outer wall of the lower half part and comprises a first inclined surface section, a curved surface part and a second inclined surface section; and the second inclined surface section is connected with the barrel bottom. The garbage can is unique in structure, the can body structure is improved, and the first inclined face and the second inclined face are designed to facilitate inclination of the can body. And meanwhile, the filter plate is further designed, and the inner groove is formed in the upper half portion, so that lifting and carrying can be facilitated.

This utility model discloses a conveyor belt under-surface cleaning and wetting device, relating to the field of conveyor belt crack detection technology. It includes a support frame positioned between the upper and lower belts. Lifting components are fixedly installed at both ends of the bottom of the support frame, located on both sides of the conveyor belt. A cleaning component for cleaning the under-surface of the upper belt is located on the front side of the top of the support frame, and a drying component for drying the under-surface of the upper belt is located on the rear side. This conveyor belt under-surface cleaning and wetting device can remove interfering materials such as coal ash beforehand through the cleaning component, avoiding misjudgment of crack features by the detection equipment. The drying process eliminates water residue, preventing water film from interfering with the imaging quality of the optical detection equipment and avoiding the risk of slippage caused by a decrease in the friction coefficient between the belt and the drive roller. While ensuring coal transportation efficiency, it provides a clean and dry detection environment for conveyor belt hazard monitoring, effectively improving the accuracy of crack identification.

The utility model relates to the technical field of welded pipes, and provides high-frequency induction welded pipe equipment which comprises a shell, a mounting plate and a rotating frame, a first air cylinder is mounted at the top of the inner wall of the shell, a top plate is mounted at the bottom of the first air cylinder, an output rod is mounted at the output end of the first air cylinder, and top blocks are mounted on the two sides of the top of the outer wall of the top plate. Sliding rods are mounted on the two sides of the bottom of the outer wall of the top plate, a mounting plate is mounted at the bottom of the top plate, an assembling plate is mounted on the outer wall of the mounting plate, and a motor is mounted at the top of the assembling plate. According to the equipment, rapid and stable telescopic movement is achieved through accurate movement of the first air cylinder and the output rod, so that the mounting plate is driven to move up and down, meanwhile, the rotating rod and the rotating frame driven by the motor enable the welding head to rotate rapidly and accurately, a steel pipe is welded efficiently, and the problem that the welding efficiency is insufficient is solved.

The present invention relates to a chiral dicarboxylic acid metal organic framework crystal material and its preparation method and application. The material has the following chemical formula: {[Cu(L')(H2O)]·4H2O·3CH3OH} n , wherein L is 4,4'-((4R,5R)-4,5-diphenylimidazoline-1,3-diyl)dibenzoate divalent anion, and n is the degree of polymerization. The metal organic framework crystal material of the present invention adopts a solvent thermal synthesis method, which is simple to operate, low in cost, high in yield, and easy to be mass-produced industrially. The prepared metal organic framework crystal material has a high specific surface area (BET specific surface area of ​​773m 2 / g), 1atm, the adsorption capacity of CO2 at 273K is 44.0cm 3 / g. In the absence of alkali, it can efficiently catalyze the coupling of phenylacetylene to produce 1,4-diphenylbutane-1,3-diyne. The catalyst can be recycled five times with almost no activity loss, which is a good heterogeneous catalyst.

The present invention relates to the technical field of sewage treatment materials, and specifically to a porous composite filler and application thereof for efficiently removing total nitrogen from domestic sewage; the porous composite filler is a porous zeolite / nanocarbon ball composite filler, and the porous zeolite / nanocarbon ball composite filler comprises a porous zeolite and a single-porous hollow nanocarbon ball loaded on the pore surface of the porous zeolite; the mass ratio of the porous zeolite and the single-porous hollow nanocarbon ball is (95.0~98.0):(2.0~5.0). The single-porous hollow nanocarbon ball of the present invention has a unique single-porous hollow structure, which is combined with the columnar pore adsorption and diffusion capacity of the porous zeolite to achieve efficient removal of total nitrogen. The composite filler has excellent adsorption performance and structural stability, is suitable for the removal of total nitrogen in municipal sewage treatment, industrial wastewater treatment and artificial wetland systems, achieves the performance of efficient removal of total nitrogen from domestic sewage, solves the problem of low adsorption efficiency, and has a wide range of application value.

The invention discloses a method and a system for recycling cellulose ether wastewater. According to the method, technologies such as pretreatment, electrodialysis treatment of an electrodialysis unit system with specific composition, evaporative crystallization and the like are utilized, and NaCl crystalline salt and desalinated water rich in alcohols are respectively recovered from the cellulose ether wastewater. Wherein a desalination chamber and a concentration chamber in the electrodialysis unit system are respectively provided with an independent water inlet, fed materials in electrodialysis only enter the desalination chamber and do not enter the concentration chamber, water entering the concentration chamber is electrodialysis circulating concentrated water, and the synergistic operation effect of each unit system ensures that alcohols do not enter the salt-containing concentrated water; and thorough separation of sodium chloride and alcohols after electrodialysis treatment is ensured. The recovered sodium chloride can be reused for production or sold as a sodium chloride product; the alcohol-rich desalted water can be reused / sold as a sewage biochemical treatment nutrient solution or used for other purposes. And by recycling sodium chloride and alcohols, resource utilization of the cellulose ether wastewater is realized, and the method has huge economic, environment-friendly and social benefits.