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282results about How to "Achieve adsorption" patented technology

Preparation method and application of MOF composite aerogel based on cellulose in-situ growth

The invention discloses a cellulose-based in-situ growth MOF composite aerogel preparation method, which comprises: mixing cellulose powder and dimethylimidazole, adding into deionized water, gradually adding cobalt nitrate and zinc chloride, uniformly stirring, carrying out a heating reaction, adding polyethyleneimine, uniformly stirring, adding a cross-linking agent, carrying out cross-linking, washing, and drying to obtain the cellulose-based in-situ growth MOF composite aerogel. The composite hydrogel is obtained; and finally, sealing, heating and baking the composite hydrogel, washing and drying to obtain the composite aerogel. According to the method, the MOF is synthesized on the cellulose in situ under the low-temperature water phase condition, the composite aerogel containing the MOF material is obtained, the MOF material synthesized on the cellulose in situ has good porosity and particle size and uniformly covers the cellulose, loss of active components is avoided, the problem that the MOF material is prone to agglomeration is solved, and the preparation method is suitable for industrial production. Meanwhile, the adsorption performance is also effectively improved, the adsorbent has good affinity with water, and the surface can be promoted to adsorb three metal ions of vanadium, molybdenum and nickel at the same time.
Owner:CHONGQING UNIV

System and method for treating coexisting new pollutants in drinking water

The invention provides a system and a method for treating coexisting new pollutants in drinking water, and the system and the method are characterized in that firstly, ozone microbubble water with small volume and large specific surface area and magnetized superfine activated carbon are used for carrying out oxidation treatment on the coexisting new pollutants and adsorbing pollutants with small molecular weight and relatively high activity; the purpose of removing part of new pollutants is achieved; then, under the irradiation of an ultraviolet lamp tube, the reducing agent catalyzes sulfite to generate reducing free radicals such as hydration electrons [eaq-],. H and SO3., and under the substitution action of iodide ions, reductive dehalogenation and iodine substitution reaction of the halogenated organic matter difficult to degrade are achieved, and reduction removal of new pollutants difficult to degrade is achieved. The system is simple and compact in structure, is a treatment device integrating filtration, oxidation, adsorption and reduction, reduces the occupied area, can realize effective removal of coexisting new pollutants with different molecular characteristics and different reaction activities through multiple actions of physical interception, oxidation, adsorption, reduction and the like, and has a wide application prospect.
Owner:SHANDONG JIANZHU UNIV

Extraction method of high-purity astragalus polysaccharide

The invention relates to a method for extracting high-purity astragalus polysaccharide. The method comprises the following specific steps: washing astragalus, drying and crushing into coarse powder; under a certain solid-liquid ratio, extracting astragalus polysaccharide by using ultrasonic waves; carrying out mixed enzymolysis on the extracting solution and cellulase, and terminating enzyme reaction through heating; and mixing the enzymatic hydrolysate with specific molecularly imprinted polymers (MIPs), specifically adsorbing the astragalus polysaccharide through a molecular recognition effect, and eluting and purifying by using a mixed solution of water and ethanol. In the preparation process of the MIPs, oligosaccharide fragments of astragalus polysaccharide, acrylamide, ethylene glycol dimethacrylate, potassium persulfate and lauryl sodium sulfate are dissolved in methanol, and free radical polymerization reaction is carried out under the protection of nitrogen. Experimental results show that the purity and the extraction rate of the astragalus polysaccharide extracted by the method are remarkably improved, and the method has the advantages of simplicity and convenience in operation, high efficiency, economy, environmental protection and the like.
Owner:INNER MONGOLIA HONGXING BIOTECHNOLOGY CO LTD

3D printing method capable of accurately arranging various powder materials and 3D printing device thereof

The invention relates to a 3D printing method capable of accurately arranging various powder materials and a printing device thereof. The 3D printing method comprises the following steps that at least two kinds of powder are placed in powder material bins with the corresponding number; each material in the same layer is arranged and formed after the former material is arranged and formed; the material arranging and forming method comprises the following steps that a powder distributing plate is moved to a powder material bin, the top face of the powder distributing plate is covered with an area where powder needs to be arranged through electrons, materials are adsorbed to the corresponding position of the bottom face of the powder distributing plate through charge polarization, and the powder distributing plate is moved to the position above a forming bin; electrons on the top surface of the powder distribution plate are removed to enable the powder to fall into a forming area, and the powder distribution plate is moved away for forming; thus, part forming is achieved by printing layer by layer in areas. Powder is adsorbed in a designated area through charge polarization, when the powder distribution plate moves to the corresponding position of the forming bin, adsorption of the powder distribution plate to the powder is eliminated, and multiple materials are accurately arranged on the same layer.
Owner:SHAOGUAN COLLEGE +1

Zeolite rotating wheel for treating styrene-containing organic waste gas

The invention belongs to the technical field of environmental protection equipment, and particularly discloses a zeolite rotating wheel for treating styrene-containing organic waste gas. The zeolite rotating wheel comprises an anti-polymerization wheel core, a VOCs wheel core and a connecting shaft; the anti-inhibition wheel core is provided with a porous channel structure penetrating front and back, and an anti-inhibition molecular sieve is loaded on the inner wall of the channel; the VOCs wheel core is attached to the rear portion of the anti-polymerization wheel core and is provided with a porous channel structure penetrating front and back, a zeolite molecular sieve is loaded on the inner wall of the channel, and the connecting shaft penetrates through the anti-polymerization wheel core and the VOCs wheel core to connect the anti-polymerization wheel core and the VOCs wheel core in series and fixedly connect the anti-polymerization wheel core and the VOCs wheel core. According to the present invention, the efficient adsorption and concentration of the easily-polymerized styrene component and the conventional non-methane total hydrocarbon can be achieved, the requirements of the chemical industry, the plastic industry, the printing industry, the coating industry and other industries on the styrene-containing and non-methane total hydrocarbon-containing waste gas working condition treatment are met, the purification effect of the styrene-containing organic waste gas is substantially improved, and the service life of the equipment is substantially prolonged.
Owner:SHANGHAI LANBAO ENVIRONMENTAL PROTECTION TECH CO LTD

Printing and dyeing wastewater treatment device for textile printing and dyeing

The printing and dyeing wastewater treatment device comprises a treatment box, a partition plate is fixedly arranged in the treatment box, a bottom plate is arranged on one side of the partition plate in a sliding mode, the bottom plate is arranged on the side wall of the treatment box in a sliding mode through a sliding block, and a sliding groove corresponding to the sliding block is formed in the side wall of the inner side of the treatment box; a sliding groove is formed in the bottom plate, a threaded rod is rotationally arranged in the sliding groove and rotationally penetrates through the sliding block, a threaded through hole corresponding to the threaded rod is formed in the sliding block, a water inlet is fixedly formed in the side wall of one side of the processing box, a water passing opening is formed in the partition plate, and a filter plate is fixedly arranged on the side, close to the bottom plate, of the water passing opening. According to the textile printing and dyeing wastewater treatment device, textile printing and dyeing wastewater can be subjected to standing, filtering and adsorption treatment in sequence, multiple purification treatment modes are combined, the purification effect is greatly improved, the filter plate can be continuously scraped, and the situation that textile fibers are accumulated on the filter plate to affect the filtering effect is avoided.
Owner:NANTONG DIBO TEXTILE CO LTD

Stirring type multi-medium filter

The utility model discloses a stirring type multi-media filter, which belongs to the technical field of stirring type multi-media filters, and is characterized by comprising a filter box, mounting blocks are fixedly connected to the front side and the rear side of the inner wall of the filter box, dismounting assemblies are clamped to the inner walls of the mounting blocks, and filter screens are clamped to the inner walls of the dismounting assemblies. The bottom of the filter box is fixedly connected with a stirring type multi-medium filter body, the left side of the filter box is communicated with a connecting pipe, and the problems that most of the water inlet ends of existing stirring type multi-medium filters do not have pretreatment structures, so that large floating objects in wastewater easily enter the stirring type multi-medium filters, and waste water is polluted are solved. And when large floating objects enter the stirring type multi-medium filter, the filtering medium is easy to block and a stirring device is easy to damage, so that the filtering performance of the stirring type multi-medium filter is reduced, and most pretreatment structures are inconvenient to disassemble.
Owner:JINING CITY WATER CO LTD LUQUAN

Air purification device for removing formaldehyde

The utility model provides an air purification device for removing formaldehyde, which belongs to the technical field of air purification and comprises a shell of the purification device, air inlets arranged on the periphery of the shell and an exhaust port arranged on the upper side of the shell, universal wheels are arranged on the lower side of the shell, and a filtering mechanism is arranged on the upper sides of the air inlets. A motor is fixedly arranged at the position, located in the shell, of the upper side of the universal wheel, a rotating shaft is fixedly arranged at the output end of the motor, fans are arranged in the middle and on the upper portion of the rotating shaft, a cross rod is fixedly arranged on the upper side of the fan in the middle, the rotating shaft penetrates through the cross rod, and an atomizer is fixedly arranged on the inner wall of the shell; a water inlet of the atomizer is formed in the side face of the outer wall, and a nozzle of the atomizer points to the fan on the upper side of the rotating shaft. According to the formaldehyde purification device, the flowability of air is improved through the fan, the purification rate of formaldehyde in the air is increased, and the atomizer is arranged to atomize a formaldehyde scavenger to purify part of formaldehyde which is not completely purified by activated carbon.
Owner:ZHEJIANG SNOD NEW MATERIAL TECH CO LTD

Domestic sewage treatment method

The invention provides a domestic sewage treatment method, and belongs to the technical field of sewage treatment methods. According to the invention, the domestic sewage is subjected to grid filtration to remove floating impurities; putting a composite sewage treatment agent into the filtered domestic sewage, and performing ultrasonic treatment on the mixed sewage to obtain mixed sewage; discharging the mixed sewage into a settling pond, using settled sludge for producing biomass fertilizer, discharging supernatant clear water into a filtering pond, and directly discharging clear water filtered by an activated carbon layer and a quartz sand layer; the compound sewage treatment agent is prepared from modified melanospora powder, compound bacteria liquid, polyacrylamide, water and calcium oxide. According to the domestic sewage treatment method, the COD value, the ammonia nitrogen content and the heavy metal ion content in the water body can be effectively removed, and the removal efficiency reaches 99.6%, 99.9% and 97.3% respectively.
Owner:吕梁市园林绿化中心

Giant salamander grease and application thereof in blood fat reducing products

The invention discloses giant salamander grease and application thereof in a blood fat reducing product. The giant salamander grease is obtained by adding papain into giant salamander tissues for enzymolysis and then adsorbing by using an egg white modified microsphere adsorbent. The giant salamander grease is refined by using the egg white modified microsphere adsorbent, and then the giant salamander grease is compounded with the dark tea extract, the hawthorn extract and the lotus leaf extract and processed into embedded particles, so that the water solubility of the giant salamander grease preparation can be improved, and the giant salamander grease preparation can be used as an oral preparation for reducing blood fat.
Owner:HUNAN TIANJIN PHARMA

Automatic detection and automatic aging loading and unloading device for surface-mounted resistors and capacitors

The invention discloses an automatic detection and automatic aging loading and unloading device for surface-mounted resistors and capacitors, and relates to an aging test device. The device comprises a platform frame, parallel guide rails, a vertical guide rail, a suction head device, a resistance-capacitance test plate, an LCR capacitance tester, an electric feeder and an aging tool plate, the two parallel guide rails are installed on the two sides of the platform frame in parallel, and the vertical guide rail is installed on the two parallel guide rails and is perpendicular to the parallel guide rails; the suction head device is mounted on the vertical guide rail; the resistance-capacitance test board is installed at the front end of the platform frame, and the LCR capacitance tester is connected with the resistance-capacitance test board through a wire. The electric feeder is arranged at the front end of the platform frame; the aging tool plate is placed at the middle rear position of the platform frame; the CCD camera can realize accurate identification of positions of the device and the aging test electrode, the electromagnetic valve controls on-off of airflow, adsorption and separation of the device by the suction nozzle are realized, and the device is placed on the resistance-capacitance test plate for performance parameter test. The operation process does not need personnel participation, the working intensity of personnel is reduced, and the efficiency is improved.
Owner:KUNMING NORTH INFRARED TECH CO LTD +1

Forest soil porosity detection device and detection method

The invention relates to the field of soil porosity measurement, in particular to a forest soil porosity detection device and method. Comprising a workbench, a measuring device body, a sliding plate, a drilling mechanism, a positioning mechanism, a slicking mechanism and a sampling mechanism, through the arrangement of the drilling mechanism, drilling can be conducted on the ground, an air cylinder is started, a semicircular column is driven to move downwards under the action of a clamping assembly, and through the action of the slicking mechanism, the inner wall of a pit can be slicked to be flat, so that the sampling accuracy is improved. The sampling device is simple in structure and convenient to use, surface topsoil can be cleaned through rotation of a cleaning roller brush, the sampling effect can be improved, a clamping assembly continues to move downwards, a T-shaped sliding block, an orientation cylinder and a cutting ring can be driven to move horizontally, and when the T-shaped sliding block moves, the orientation cylinder and the cutting ring can be driven into the inner wall of a soil pit through the cooperation of a transmission assembly, an induction assembly and a soil trimming assembly, so that the sampling effect is improved. The sampling function is achieved, and soil at the end of the cutting ring is flattened under the action of the soil trimming assembly.
Owner:ZICHUAN DISTRICT STATE-OWNED FOREST FARM

Nanometer magnetic bead with adjustable surface potential as well as preparation method and application of nanometer magnetic bead

The invention discloses a nano magnetic bead with adjustable surface potential and a preparation method and application thereof. The nano magnetic bead comprises a ferroferric oxide magnetic bead core, a silicon dioxide layer coating the surface of the ferroferric oxide magnetic bead core and a ligand unit, the ligand unit is loaded on the surface of the silicon dioxide layer through an amido bond, and the ligand unit can be in coordination connection with metal ions. The surface of the nano magnetic bead is modified with ligand molecules, the ligand molecules and metal ions can form coordinate bonds, so that the surface of the nano magnetic bead is provided with a large number of positive charges, the ligand molecules are neutral or are negatively charged, and after the metal ions losing coordination, the surface of the nano magnetic bead is neutral or is provided with a large number of negative charges, and therefore, the surface of the nano magnetic bead is neutral or is negatively charged. According to the nano magnetic bead, the purpose of adjusting the surface potential of the nano magnetic bead can be achieved by changing adsorption and elution of ligand molecules to metal ions.
Owner:SHENZHEN TONGTU BIOTECHNOLOGY CO LTD

Lithium adsorption material and preparation method and application thereof

The invention relates to the technical field of lithium ion adsorption materials, and discloses a lithium adsorption material and a preparation method and application thereof. The lithium adsorption material comprises a skeleton and an amino-modified lithium ion sieve dispersed in the skeleton, the lithium ion sieve is connected with the framework through a structure as shown in a formula I; the framework comprises a structural unit A, a structural unit B, a structural unit C and a structural unit D; the structural unit A and the structural unit C are connected through a structure as shown in a formula II; the structural unit B and the structural unit C are connected through a structure as shown in a formula III; a structure as shown in a formula IV is formed between the structural unit C and the structural unit D; # imgabs0 # Ar1 is a residue obtained after dehydroxylation of a polyhydric alcohol; ar2 is a residue of a polyisocyanate; ar3 is a residue obtained after dehydroxylation of cyclodextrin; and R1 is an alkylene group of C3-C6. The lithium adsorption material disclosed by the invention is high in adsorption capacity for lithium ions in a solution and high in magnesium-lithium selectivity.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Method for preparing formate through carbonate electroreduction and application of formate

The invention discloses a method for preparing formate through carbonate electroreduction and application of the formate. The method comprises the following steps: 1) assembling a three-electrode system by using an electrode loaded with a tin-based oxygen-containing compound as a working electrode, an Ag / AgCl electrode or Hg / HgO electrode as a reference electrode, a platinum electrode as a counter electrode and a carbonate solution as an electrolyte, and filling the electrolyte into a gas diffusion electrochemical reaction tank; and 2) introducing oxygen-containing gas into the gas diffusion electrochemical reaction tank, electrifying to sequentially carry out local reduction of the tin-based oxygen-containing compound, electroreduction of carbonate and regeneration of the tin-based oxygen-containing compound, and circulating in sequence. The method for preparing formate through carbonate electroreduction has the advantages of being easy to operate, simple in equipment, reliable in principle, low in cost, high in stability and the like, and is suitable for large-scale industrial application.
Owner:SOUTH CHINA UNIV OF TECH

Vinegar residue biomass charcoal as well as preparation method and application thereof

The invention discloses vinegar residue biomass charcoal as well as a preparation method and application thereof, and belongs to a resource recycling technology. The preparation method of the biomass charcoal comprises the following steps: pyrolyzing vinegar residues under an anaerobic condition, and cooling to room temperature to prepare vinegar residue biomass charcoal; the pyrolysis temperature is 400-600 DEG C, and the pyrolysis time is 2-4 hours. The prepared vinegar residue is alkaline biomass charcoal which is large in specific surface area and high in adsorption capacity, has a porous structure and has an adsorption effect on heavy metal ions in a water body. The method not only can effectively utilize wastes, but also can react to purification of a water body environment, and solves the technical problem of low efficiency of adsorbing heavy metal ions by using vinegar residues in the prior art.
Owner:SHAANXI UNIV OF SCI & TECH

SRB repair system capable of stably operating for long time and treating heavy metal wastewater and application of SRB repair system

The invention discloses an SRB remediation system capable of stably operating for treating heavy metal wastewater for a long time and application, belongs to the technical field of heavy metal wastewater treatment, and solves the problems that in the prior art, mining heavy metal wastewater generally contains high-concentration soluble heavy metal, high sulfate content and low pH value, the ecological environment is seriously damaged, and the service life of the mining heavy metal wastewater is prolonged. And the traditional physicochemical treatment method has the technical problems of high agent consumption, high sludge amount, easiness in secondary pollution and the like. According to the SRB remediation system capable of stably operating for a long time and used for treating heavy metal wastewater, efficient removal and immobilization of heavy metal are achieved on the basis of the biological vulcanization effect of SRB composite flora in a UASB bioreactor in combination with the synergistic effect of microbial communities and the protection mechanism of extracellular polymeric substances, and by constructing the composite SRB flora system, operation parameters are accurately regulated and controlled, so that the heavy metal wastewater treatment efficiency is improved. And efficient and stable removal and fixation of various heavy metals in the AMD are realized in the UASB reactor by utilizing a cooperative protection mechanism of EPS.
Owner:EAST CHINA NORMAL UNIV

Method for enhancing CO2 sequestration of exhausted shale oil and gas reservoir

PendingCN119435126AImprove adsorption capacityImprove electrocatalytic oxidation performanceMining devicesPtru catalystCatalytic oxidation
The invention belongs to the technical field of CO2 geological sequestration of unconventional reservoirs, and particularly relates to a method for enhancing CO2 sequestration of an exhausted shale oil and gas reservoir. The positive electrode and the negative electrode are placed in the injection well and the production well respectively, in the electrifying process, the positive electrode generates a strong oxidation effect under the action of a catalyst, no catalyst exists on the surface of the negative electrode, and a strong electrocatalytic reduction reaction cannot occur; meanwhile, a mode of intermittently supplying power and exchanging a power supply and an electrode is adopted to promote the left area and the right area of the whole reservoir to generate strong electrocatalytic oxidation, and CO2 in the whole area is promoted to be firmly adsorbed in the reservoir and cannot escape, so that the carbon sequestration effect is realized; according to the method, the storage efficiency of CO2 can be improved, the recovery efficiency of the oil reservoir is improved, energy safety is guaranteed, and emission of greenhouse gas is reduced.
Owner:XI'AN PETROLEUM UNIVERSITY

Washing product packaging and packaging mechanism

The utility model discloses a washing product packaging and packaging mechanism which comprises a lower conveying frame and an upper conveying frame, supporting rods are fixedly connected to the two sides of one end above the lower conveying frame and the other side of the middle of the lower conveying frame, the upper conveying frame is fixedly connected to the top ends of the supporting rods, and supporting vertical rods are fixedly connected to the two sides of one end of the lower conveying frame. An inclined collecting plate is fixedly connected to the top end of the supporting vertical rod, a circular through hole is formed in the middle of the inclined plate, the inclined collecting plate is located at the bottom of one end of the upper conveying frame, and electric telescopic rods are fixedly connected to the four corners of the top end of the inclined collecting plate. By arranging a driving motor, an extending abutting pipe, an electric telescopic rod and a fixing pipe, the driving motor drives the extending abutting pipe to rotate and cooperates with the electric telescopic rod to complete recycling, then a suction cup adsorbs a bottle cap and extends to penetrate through the fixing pipe, and the driving motor drives the bottle cap to cover the outer portion of a threaded opening in a threaded mode; and the packaging operation of the washing tank is completed.
Owner:SHAANXI LIANGYEKE CONSTR ENG GRP CO LTD

A collaborative robot arm and method of controlling the same

ActiveCN119772868Bachieve adsorptionchange center of gravityCooperative workFuture of robotics
The application relates to the technical field of robots, and provides a cooperative work mechanical arm and a control method thereof. The application comprises a first mechanical arm, a second mechanical arm, a third mechanical arm and a fourth mechanical arm, the first mechanical arm, the second mechanical arm and the third mechanical arm are located on a first track, the fourth mechanical arm is located on a second track, the first track and the second track are arranged in parallel, and the first track and the second track are straight tracks; a first safety distance is kept between the second mechanical arm and the first mechanical arm, a second safety distance is kept between the third mechanical arm and the first mechanical arm, and the second safety distance is greater than or equal to the first safety distance. The beneficial effect is that the multiple mechanical arms have different safety distances with the first mechanical arm, the interference between the mechanical arms during work is avoided, the work can be cooperatively completed, and the maximum cooperative work space is obtained.
Owner:钮建伟 +1

A cushion block gluing loading disc and a cushion block automatic gluing device

ActiveCN224346282URealize continuous automatic feedingachieve adsorptionLiquid surface applicatorsCoatings
This utility model belongs to the field of transformer manufacturing and relates to a pad gluing and feeding tray and an automatic pad gluing device. The pad gluing and feeding tray has an inner cavity divided into an air supply chamber, an air extraction chamber, and an empty chamber. The air supply chamber is located at the lower part of the inner ring of the pad gluing and feeding tray, connected to one end of an air supply pipe, and the other end of the air supply pipe is connected to an air supply port, which is connected to an air supply mechanism. The air extraction chamber is connected to one end of an air extraction pipe, and the other end of the air extraction pipe is connected to an air extraction port, which is connected to an air extraction mechanism. A set of grooves are evenly distributed on the circumference of the outer ring of the pad gluing and feeding tray, with ventilation holes in the center of the grooves. The output shaft of the feeding tray motor is fixedly connected to the outer ring rotating shaft of the pad gluing and feeding tray via a coupling. The automatic pad gluing device includes an electric cylinder, a pneumatic slide table, and a dispensing machine. This utility model achieves continuous automatic feeding of pads, enabling automatic adsorption and automatic ejection of pads, and ensuring that the spacing and height of each pad are consistent after bonding with the paper tape.
Owner:SHANDONG FUTURE INTELLIGENT TECH CO LTD

Nicotine releasing agent for buccal cigarettes as well as preparation method and application of nicotine releasing agent

The invention provides a nicotine releasing agent for buccal cigarettes and a preparation method and application of the nicotine releasing agent, and belongs to the technical field of tobaccos. The nicotine releasing agent for the buccal cigarette comprises cyclodextrin nanometer sponge with a three-dimensional porous nanometer structure and nicotine salt embedded and / or adsorbed and loaded on the cyclodextrin nanometer sponge, and cyclodextrin / cyclodextrin derivatives and a covalent cross-linking agent are subjected to a cross-linking reaction to form the cyclodextrin nanometer sponge.
Owner:CHINA TOBACCO HUNAN IND CORP

Preparation method and application of a capacitive deionization anode applied to phosphate adsorption and desorption

A method for preparing a capacitive deionization anode for phosphate adsorption and desorption, and its application, belong to the field of inorganic phosphorus wastewater adsorption and enrichment. This invention aims to solve the problems of existing adsorption materials, such as low phosphate adsorption capacity, difficulty in reusing the adsorbent, or poor conductivity. Method: 1. Preparation of a PEDOT / YMOF-NH2 composite material; 2. Preparation of a capacitive deionization anode. Application: It is used for the adsorption and desorption of phosphates in phosphate-containing water. This invention is used for the preparation of a capacitive deionization anode for phosphate adsorption and desorption.
Owner:HARBIN INST OF TECH ZHENGZHOU RES INST

Application of magnesium-based cementitious materials in the treatment of heavy metal ions in ultrastable mineralized environments

This invention relates to the field of heavy metal contaminated water or soil remediation technology, and discloses the application of magnesium-based cementitious materials in heavy metal ion remediation in ultra-stable mineralized environments. This invention can achieve good heavy metal adsorption effects in a short time, without the release of toxic substances or secondary pollution, and is suitable for the remediation of heavy metal contaminated water or soil.
Owner:QUZHOU INSTITUTE FOR INNOVATION IN RESOURCE CHEMICAL ENGINEERING

Direct flotation composite collecting agent for bauxite with low aluminum-silicon ratio and preparation method of direct flotation composite collecting agent

The invention discloses a low-alumina-silica-ratio bauxite direct flotation composite collecting agent and a preparation method thereof, and the method comprises the following steps: gradually adding an emulsifier into water, and stirring until the emulsifier is uniformly mixed to obtain an emulsifier solution; adding a fatty acid soap compound, a hydroximic acid compound and a co-emulsion into the emulsifier solution, and then heating, stirring and uniformly mixing to obtain a medicament mixed solution; and the agent mixed solution is placed in an ultrasonic cleaning machine or a stirring emulsifying machine, a synergist is added for a synergistic reaction, the solution is stirred to be uniform, and the composite collecting agent is obtained. The method is simple and easy to implement, the emulsifying effect can be improved, the production cost is reduced, the using amount of the collecting agent in the sorting process is reduced, mineral resources are saved and efficiently utilized, and the prepared collecting agent has the advantages of being excellent in selectivity, strong in collecting capacity, good in agent stability, resistant to low temperature and the like and is suitable for mineral separation of bauxite with the low aluminum-silicon ratio. The concentrate grade and recovery rate can be effectively improved, and the aluminum-silicon ratio of the concentrate is remarkably improved.
Owner:CHINA UNIV OF MINING & TECH

Drawer type iron remover with anti-blocking structure

The utility model provides a drawer type de-ironing separator with an anti-clogging structure, which relates to the technical field of de-ironing separators, and comprises a processing bin, a feed port is formed in the top of the processing bin in a penetrating manner, a fixed frame is arranged at the top of the processing bin, two groups of brackets are symmetrically arranged at two ends of the top of the fixed frame, a movable rod is arranged on one side of each bracket, and the movable rod is arranged on the other side of each bracket. One end of the movable rod movably penetrates through the support and is connected with a limiting frame, and a screening box is arranged on the inner side of the limiting frame. According to the screening device, materials can be contained in the screening box, the air cylinder continuously stretches out and draws back, so that the movable rod slides on the support, the limiting frame is driven to shake left and right, the materials contained in the screening box can be screened, the materials with the large size are left in the screening box, and the materials with the small size fall down; and the iron enters the processing bin from the feeding hole for iron removal, so that the inner part of the iron remover is prevented from being blocked, the service life of the iron remover is prolonged, and the overall iron removal working efficiency is improved.
Owner:KANGSHOU PHARMACY CO LTD HUNAN

Low-carbonic acid recovery tower condenser

The utility model relates to the technical field of condensers, in particular to a low-carbonic-acid recovery tower condenser which comprises a tower body, a cooling mechanism is installed on the tower wall of the tower body, the cooling mechanism is composed of a liquid inlet head, a sealing disc, a cylinder A, a cooling pipe, a cylinder B and a liquid discharging pipe in a combined mode, the sealing disc is installed on the tower top of the tower body through bolts, and the cooling pipe is installed on the sealing disc. A sealing disc is welded to the bottom of the tower body, a cylinder A is welded to the bottom of the sealing disc, a liquid inlet head is welded to the top of the cylinder A in a communicating mode and penetrates through the sealing disc, the wall of the cylinder A and the wall of the cylinder B are welded in a communicating mode through a plurality of sets of symmetrical cooling pipes, and a liquid drainage pipe is welded to the cylinder B in a communicating mode and penetrates through the bottom of the tower body. Low-carbon acid is cooled through the cooling pipe, and cooling liquid enters the barrel B through the cooling pipe and then is discharged through the liquid discharging pipe, so that the cooling effect on the tower body is improved.
Owner:HEBEI RUIXINJINHUA NEW ENERGY TECH CO LTD

A feeding and discharging mechanical arm for a winding machine

The utility model relates to a feeding and discharging mechanical hand for winding machine belongs to mechanical technical field. The horizontal side plate is provided with feeding and discharging mechanical hand, and feeding and discharging mechanical hand is located the above of wire reel mounting structure, and feeding and discharging mechanical hand includes the cylinder support of installation in horizontal side plate, and is provided with lifting cylinder on cylinder support, be provided with lifting support plate on the cylinder axle of lifting cylinder, be provided with rotating structure on lifting support plate, be provided with sucking disc connecting structure on rotating structure. The utility model has the advantages that: when using, according to the need of actual situation, install multiple sucking disc, and adjust the distance between sucking disc, drive the lifting of sucking disc through lifting cylinder, drive sucking disc rotation through rotating motor, realize the adsorption of wire reel with sucking disc through the above -mentioned method, thereby realize the automatic feeding and discharging of wire reel, solve the problem of low production efficiency caused by manual feeding and discharging in prior art, the utility model novel structure, convenient operation.
Owner:KUNSHAN ZHILING AUTOMATION TECH CO LTD

A loading structure of a folding umbrella flower

A feeding structure for folding umbrella fabric includes a base and a suction cup. The suction cup includes a rotating end and an adsorption end. The rotating end is connected to a servo motor. Several adsorption ports are formed on the lower annular surface of the adsorption end. These ports are connected to an external vacuum extraction device through connecting holes inside the suction cup. The base is equipped with a feeding rod and a folding umbrella fabric mechanism. The feeding rod is vertically adjustable on the base. The folding umbrella fabric mechanism includes an embossing surface. The lower annular surface of the adsorption end is higher than the embossing surface. A negative pressure sensor connected to the connecting holes is provided on the base. The servo motor controls the rotation of the suction cup. When the suction cup rotates above the feeding rod, the feeding rod lifts the umbrella fabric to below the adsorption end. The suction cup then adsorbs the umbrella fabric through the adsorption ports. The servo motor rotates the suction cup, causing the adsorption end to rotate onto the embossing surface of the folding umbrella fabric mechanism. This invention provides uniform adsorption of the umbrella fabric, ensuring that the umbrella fabric does not pull up lower layers of umbrella fabric during the adsorption process.
Owner:李锦洪