118results about How to "Overcome adsorption" patented technology

The present invention is non-contact magnetically adsorbed wall climbing robot, belongs to the field of robot design technology, and aims at providing robot with both high moving flexibility and great loading capacity. The non-contact magnetically adsorbed wall climbing robot includes wheeled moving mechanism and permanent adsorption mechanism. The wheeled moving mechanism includes chassis, driving mechanism and wheels, which are laid symmetrically, driven in differential mode, and turns on wall by means of the speed difference of the wheels. The permanent adsorption mechanism has no contact with the magnetically conducting wall surface, high magnetic energy utilization, and high adsorption capacity. The wall climbing robot has high loading capacity, high motion flexibility, especially high turning flexibility, and excellent application foreground.

Disclosed is a magnetic-absorption wall-creeping robot with a self-adaptive capability to curved face, which belongs to the art of robot. Said robot comprises a wheeled shifter and a plural of permanent-magnet absorption devices, the wheeled shifter containing an undercarriage, a drive gear, a traction wheel and an auxiliary balancing wheel; one end of the permanent-magnet absorption device being equipped with the magnetic conduction wall surface by auxiliary balancing wheel, and the other end equipped with the undercarriage or other permanent-magnet absorption device by curved face self-adaptive device with rotational freedom degree of among one to three; the traction wheel being laid out symmetrically and driven by differential drive, and the differential of the traction wheel realizing the deflecting on the magnetic conduction wall surface. The wall-creeping robot having a strong loading power, a flexible motility and a super self-adaptive capability to curved face, has a perfect prospect.

The invention provides a preparation method of an adsorbent for removal of lead ions, cadmium ions, manganese ions, copper ions and other heavy metal ions in wastewater. The method is as follows: first using graphite powder as a raw material to prepare graphene oxide by concentrated sulfuric acid, potassium permanganate and hydrogen peroxide oxidation, dissolving the graphene oxide in ethanol to disperse the graphene oxide in the ethanol by means of ultrasonic, then adding a certain amount of an ammonia-functional-group-containing linear molecule, reacting in water bath at 50-80 DEG C for 12-24 hours, performing vacuum suction filtration of an obtained product, then washing with the ethanol, and then drying at 50-100 DEG C to obtain the heavy metal adsorption material. SEM (scanning electron microscope) pictures show that the adsorbent has a loose surface, and the adsorbent has a good application prospect in adsorption field. Adsorption experiments show that, under the condition of normal temperature, the adsorbent has a good adsorption capacity to the lead ions, cadmium ions, manganese ions and copper ions, and especially has a strong adsorption capacity to the lead ions, and the maximum adsorption amount can reach 370mg / g above.

The invention discloses a preparation method of a filtering core material for an air purifier for eliminating formaldehyde in a long-acting manner. According to the method, SOCl2 for acidizing activated carbon is modified, nanometer manganese dioxide is modified by a silane coupling agent, and the modified acidized activated carbon and the modified nanometer manganese dioxide are crosslinked to obtain a filtering core material for the air purifier for eliminating the formaldehyde in the long-acting manner. The activated carbon can be used as an adsorbing agent and also can be used as a solidified carrier of a nano-catalyst, the process is simple, and the filtering core material has the long-acting performance, is safe and environmentally friendly, and has the formaldehyde-eliminating performance.

A clay supported by organic substance modified nano-Ti is prepared through preparing suspension from bentone and water, proportionally adding surfactant, constant-temp ion exchange reaction, proportionally dripping Ti sol to generate deposit, centrifugal water washing, drying, sinter and grinding. Its advantages are high adsorptivity to hydrophobic pollutant and high photocatalytic activity.

A microparticle immune chromatography of time-resolution fluorescence emulsion includes preparing biotinylation antibody and preparing immune time-resolution fluorescence microparticles, using Fusion 5 film to prepare avidin solid phase film detection line and quality control line by utilizing avidin to envelop said film, finally using double-antibody sandwich method to detect antigen quickly.

The present invention belongs to the field of non-ferrous metallurgy technology, and is especially RE salt preparing process and apparatus. The RE salt preparing process includes the following steps: compounding RE salt solution of 0.04-1.2 mol / l concentration and precipitant solution of 0.1-3.5 mol / l concentration; mixing the RE salt solution and precipitant solution in the mass flow rate between REO and precipitant of 1 to 1.1-1.7 at 15-60 deg.c temperature and 150-890 rpm rotation speed for 3-30 min; precipitating in a clarificator; injecting with one mud pump into a plate-frame press to obtain RE salt precipitate. The apparatus includes one barrel with material feeding port and precipitant feeding port in the bottom, eddy flow stirring rake, mixing sub chamber in the center and porous mist discharging plate in the upper part. The present invention realizes continuous production by means of the fast precipitation and solid-liquid separation.

The invention relates to a gap type negative pressure adsorption wall-climbing robot, comprising a bottom plate, a negative pressure generating device, a sealing device, an advancing device and an electric control device, wherein the advancing device is of a dual-crawler type structure; the bottom plate comprises an upper bottom plate and a lower bottom plate, the upper bottom plate covers on thelower bottom plate, the lower bottom plate is suspended below the upper bottom plate by a support pillar, an air inlet hole is formed in the center of the lower bottom plate, a gap is reserved betweenthe peripheral edge of the lower bottom plate and the periphery of the upper bottom plate instead of connection, a flow guide chamber is formed between the upper and lower bottom plates, crawler walking troughs are formed in the lower bottom plate in bilateral symmetry by taking the air inlet hole as a center; the sealing device comprises a flow guide mechanism and a flow stop mechanism, the flowguide mechanism is obliquely arranged in the gap between the peripheries of the upper and lower bottom plates, the flow stop mechanism is arranged on the bottom surface of the lower bottom plate, anda plurality of quantity of sealing bulges are uniformly distributed on the lower surface of the flow stop mechanism. The robot is applicable to common wall surfaces, and meanwhile solves conflict between adsorption force and resistance in the negative pressure adsorption process, so as to flexibly move on the wall surface.

The invention relates to an air cleaning material. The material comprises the following raw materials according to mass fraction: 60-90% of an inorganic adsorption material, 10-30% of nano titanium dioxide and 1-5% of Pt. A preparation method of the air cleaning material comprises the following steps: immersing the inorganic adsorption material in a mixture of titanium dioxide sol and Pt, drying the material, and sintering the material. According to the invention, the surface of the air cleaning material is uniformly coated by nano titanium dioxide and Pt, and the air cleaning material has good adsorption effect on harmful substance in air.

The invention relates to a one-step preparation method of sodium carboxymethyl cellulose / polyethyleneimine (CMC / PEI) double-network hydrogel with a function of efficiently removing Cr (VI). The preparation method comprises the following steps: evenly stirring a CMC colloidal solution and a PEI solution so as to form a mixed colloidal solution, and then adding a crosslinking agent for carrying outa crosslinking reaction so as to obtain the CMC / PEI double-network hydrogel; the one-step preparation method, provided by the invention, of the CMC / PEI double-network hydrogel with the function of efficiently removing the Cr (VI) is simple and easy to control, low in cost, stable and reliable, and can effectively remove the Cr (VI); therefore, the CMC / PEI double-network hydrogel has a broad application prospect in the field of pollution control.

The invention provides a switch mechanism, a box structure and a refrigerator. The switch mechanism is arranged on the box body structure, the box body structure comprises a box body and a door body connected with the box body, the switch mechanism comprises a driving assembly and an energy storing assembly. The driving assembly comprises a driving device and an executing device which are connected, the executing device can move under driving of the driving device, one of the energy storing assembly and the driving assembly is arranged on the box body, and the other one of the energy storing assembly and the driving assembly is arranged on the door body, and the energy storing assembly comprises an elastic component, in the working process of the switch mechanism, and the driving device drives the executing device to move towards the elastic component and make a contact with the elastic component, so that the elastic component deforms until the door body is separated from the box body.According to the switch mechanism, total process automatic door opening can be realized, the door opening angle is increased, the door opening speed is increased, and the requirement of door openingspeed in the door opening process is met.

The invention discloses a non-metallic mineral long-acting nitrogenous fertilizer nitrification inhibitor and a preparation method thereof. The preparation method is characterized by comprising the following steps: introducing 1-50 parts of the nitrification inhibitor into 100 parts of 25-100 DEG C water so as to make a solution; adding 25-75 parts of nitrification inhibitor solution into every 100 parts of non-metallic mineral powder; and sufficiently stirring and drying so as to obtain the nitrification inhibitor; or a binder accounting for 1-5% of the total weight of the non-metallic mineral and the nitrification inhibitor solution is added, sufficiently stirred, palletized and dried; or a mixture of the non-metallic mineral and the nitrification inhibitor solution or a screened powder product covers the outer surface of the fertilizer. The product is prepared by utilizing the excellent abruption property of the non-metallic mineral, the process is simple, the cost is low, the slow-release effect is better, and the inhibition effect on the activity of soil enzyme is longer; and meanwhile the non-metallic mineral can further provide various beneficial elements to the soil, so that the physicochemical properties of the soil are improved.

The invention discloses an electromagnetic ultrasonic transducer of an end portion-free detection blind area. The electromagnetic ultrasonic transducer comprises a magnetic upper shell and a non-magnetic lower shell, and a traction handle used for holding and operating; the lower shell is provided with a high frequency coil and two permanent magnets with a same magnetic pole direction, the two permanent magnets respectively have a sector-shaped structure with wide top and narrow bottom, the high frequency coil gets around the lower side of one of the permanent magnets to form an excitation end; the upper shell fits with the upper portion of the lower shell to make the two permanent magnets be adsorbed on the upper shell in a mutual parallel manner; and two sides of the lower portion of the lower shell are symmetrically provided with a plurality of rigid wheels. The electromagnetic ultrasonic transducer of the end portion-free detection blind area, adopting the above design, has the advantages of increasing of the intensity and the signal to noise ratio of a magnetic field and a signal, convenient use and operate, realization of convenient replacement of the coil, protection of the coil from being damaged, elimination of the detection blind area, and effective protection of the surface of a workpiece.

The invention relates to a soil heavy mental pollution repairing agent containing lignin biochar as well as a preparation method and application thereof. The method comprises the following steps thatbiochar powder, bone meal and attapulgite clay are mixed according to a weight ratio of (40 to 60) to (20 to 40) to (10 to 20), and are subjected to ultra-micro pulverization to obtain mixed powder; 2to 5 weight percent of sodium carboxymethylcellulose solution is slowly added into the mixed powder under the nitrogen gas protection and is fully stirred to obtain viscous liquid; zeolite is fully mixed and soaked in the viscous liquid and is then fished out; heating and drying are performed, wherein the biochar powder is prepared from papermaking waste liquid lignin dry powder through high-temperature thermal cracking. The defects of poor high-valent heavy metal adsorption capability and low adsorption efficiency of the lignin biochar are overcome; the waste utilization path by lignin is expanded.

The invention relates to a preparation method of a hydrogen bond acceptor oxygen atom-rich super-crosslinked polymer and an application of the super-crosslinked polymer. The preparation method comprises the following steps: (1) preparation of a precursor polymer: carrying out a nucleophilic substitution reaction process on chloromethylated polystyrene and a phenol compound in an alkaline environment, and introducing a monomer containing hydrogen bond acceptor oxygen atoms into a polymer skeleton, and (2) preparation of a super-crosslinked polymer: carrying out a Friedel-Crafts alkylation reaction on the precursor polymer prepared in the step (1) and an external crosslinking agent under the catalysis of Lewis acid, and weaving a precursor polymer skeleton. The super-crosslinked polymer prepared by the method can realize regulation and control of the pore structure size, has a high-selectivity adsorption effect on aromatic organic compounds with specific molecular sizes, is easy to eluteafter adsorption, can be repeatedly used, and can be widely applied to the fields of chemical analysis, drug separation and purification, environmental pollution treatment and the like.

The invention discloses a novel cloth dust collector and belongs to the technical field of environmental protection devices. The novel cloth dust collector comprises a supporting frame (1), an inlet hole (2), a flow guide plate (3), a casing (4), a perforated plate (5), pulse-jet systems (6), a top handrail (7), a cover plate (8), a top cover face (9) and ladder stands (10), wherein the perforated plate (5) is arranged inside the upper end of the casing (4), a filter bag cage assembly is arranged on the downward side of the perforated plate (5), a plurality of pulse-jet systems (6) are arranged on the outer side of the casing (4) above the perforated plate (5), a dust inlet opening is arranged on one side of the upper end of the casing (4), a conical dust hopper is arranged at the lower end of the casing (4), the flow guide plate is arranged inside the conical dust hopper, and ladder stands (10) are arranged on the periphery of the casing (4). By the aid of a submerged pulse valve, the dust cleaning efficiency is improved, the jetting frequency is greatly reduced, and the jetting air source pressure and the device operation energy consumption can be reduced.

The invention relates to a method for preparing methylated catechin from tea, comprising following steps: tea powder is extracted with ethanol and petroleum ether to remove chlorophyll and fat-soluble constituents; methylated catechin crude extraction dry powder A is obtained through extraction with ethyl acetate; methylated catechin crude product is obtained via separation and purification with crude polyamide resin and fine polyamide resin; methylated catechin pure product is obtained via further purification with high speed counter current chromatography. The invention has the advantages that the invention establishes purification craft of methylated catechin firstly at home and obtains high purity methylated catechin; the invention adopts high speed counter current chromatography (HSCCC) preparation craft, which does not need solid support and overcomes defects such as sample adsorption, loss, pollution and tailed peak arisen from solid phase support compared to high speed liquid chromatography (HSLC) preparation craft; high speed counter current chromatography also has the advantages of large quantity preparation, low comprehensive cost and easy industrial popularization.

Embodiments of the invention provide a method for green extraction and determination of a variety of compounds in the Chinese herbal compound drug Naoxintong. The method comprises the following steps: (1) acquiring liquid extract of a Naoxintong sample by using a matrix solid-phase dispersion extraction process, wherein the mass of the Naoxintong sample is 10-50 mg, an adsorbent is magnesium silicate, a mass ratio of the Naoxintong sample and the adsorbent is (2: 1) to (1: 5), an eluent is methanol with a concentration of 60% to 100 % and contains 0-0.2% by volume of formic acid, the ratio of the mass of the Naoxintong sample to an elution volume is 25-42 mg / mL, and grinding time of the Naoxintong sample and the adsorbent is 0-8 minutes; and (2) analyzing the liquid extract of the Naoxintong sample by using ultra-high performance liquid chromatography so as to determine the contents of the compounds in the Chinese herbal compound drug Naoxintong. The determination method provided by the invention can provide a theoretical basis for the validation studies of traditional Chinese medicines and provide technical support for the quality control of Naoxintong.

The invention belongs to the field of separation of natural products, in particular to a method for preparing crocin-I by high-speed countercurrent chromatography. The method is to take ethyl acetate, ethanol and water to mix and separate layers, take the upper phase to fill the high-speed countercurrent chromatographic column, turn the host, pump the lower phase into the mobile phase, dissolve the gardenia yellow pigment in the lower phase and inject the sample through the injection valve , detected by an SP-200 ultraviolet detector, collect the target components according to the spectrum, and dry the fraction under reduced pressure to obtain. The process of the invention is simple in operation, short in preparation period and high in yield, can obtain more than 98% of the crocin-I product, and can realize continuous production.

The present invention discloses a preparation method of shellfish high F value oligopeptides. The preparation method comprises the following steps: shellfish meat is washed clean, the washed shellfishmeat is homogenized, then enzymatic hydrolysis is conducted to obtain an upper layer enzymatic hydrolysate, a dendrimer is used to prepare a molecular imprinting material, the molecular imprinting material adsorbs aromatic amino acids in the enzymatic hydrolysate to obtain a high F value oligopeptide solution, and high F value oligopeptide powder is prepared by freeze-drying. The raw materials ofthe product are liable to obtain and cheap, the preparation method is simple and convenient for industrial production, has a product yield of 75% or more, and the product has a F value of 50 or moreand can be used as a dietary source component for patients with liver diseases.

The invention provides a high-efficiency compound type substrate improver and belongs to the technical field of substrate environment regulation and control. The high-efficiency compound type substrate improver comprises the following formula composition by mass percent: 5%-20% of compound potassium hydrogen sulfate, 1%-20% of Percarbamide, 20%-60% of zeolite powder and 30%-50% of a filling agent; all the ingredients are pressed into cylindrical pellets with the diameter of 4-10 mm and the mass of 0.1-0.2g after being mixed in a proper proportion. According to the substrate improver provided by the invention, the ingredients are added in a scientific proportion, the functions of oxidation, oxygen supply, adsorption and the like are integrated into one, the substrate environment can be effectively improved, and cultured organisms are promoted to grow.

The invention discloses a filtering net composite material for an air purifier. The filtering net composite material is characterized by containing the following raw materials in parts by weight: 5-10 parts of nano-copper, 5-10 parts of nano-zinc oxide, 10-15 parts of nanometer titania aqueous dispersion with the concentration of 40%, 60-80 parts of acetone, 2-5 parts of an epoxy resin, 1-5 parts of poly-1,4-diphenylbutadiyne and 30-40 parts of activated carbon fibers. The filtering net composite material for the air purifier, disclosed by the invention, contains metal nano-copper, nano-zinc oxide and nanometer titania and has the effects of filtering, inhibiting and killing bacteria and removing formaldehyde. The composite material is excellent in PM2.5 filtering effect, high in formaldehyde removal rate, wide in types of inhibited and killed bacteria, long in service life, safe and environment-friendly. Meanwhile, the preparation method provided by the invention is low in material cost, readily available in raw materials and simple and clear in process and has high practical value and excellent application prospects.

The present invention provides a method for separating and purifying m-trihydroxybenzene compounds in Agrimonia polosa Ledeb. The method is characterized in that a Agrimonia polosa Ledeb crude extract is taken and is subjected to two high-speed countercurrent chromatography purification treatments to obtain m-trihydroxybenzene compounds, wherein the solvent systems used by the two high-speed countercurrent chromatography purification treatments are anhydrous systems, the second separation adopts closed circuit 7-time circulating eluting, and finally pseudoaspidin with a purity of 95.2% and alpha-Kosin with a purity of 93.2% are separated. According to the present invention, the HSCCC anhydrous solvent system and the closed circuit method are firstly used to separate the m-trihydroxybenzene compounds in Agrimonia polosa Ledeb, the purity and the recovery rate of the obtained monomer are high, and the multiple homologs are separated in one time, such that the technical disadvantags of low separation efficiency, low yield, no safety, no environmental protection and the like of the use of the traditional separation technology are solved.

The invention discloses a rotary activating oven for preparing high-quality coal-based activated carbon, and belongs to the field of production equipment of activated carbon. The rotary activating oven comprises a steam preheating device, an activating device, a feeding and discharging system and a main body part of the rotary activating oven, wherein the interior of the rotary activating oven isdivided into four sections: a material guiding section, a material ejecting and preheating section, a carbonized material activating section and a discharging section; the temperatures of water vaporin three sections are sequentially raised, and finally water vapor with the temperature of 800 to 900 DEG C is effectively and quickly contacted and activated with a carbonized material; meanwhile, the carbonized material activating section adopts a special geometrical structure formed by refractory castable and a silicon carbide material, so that stacking of a coal material can be effectively avoided, and full reaction and contact between the water vapor and the coal material are ensured; besides, an activating material and high-temperature water vapor are fully activated at high temperature.Compared with the conventional rotary activating oven, a product obtained by the activating oven has higher iodine value and greater specific area, can effectively increase the capacity of activatedcarbon and can be used for producing high-quality coal-based activated carbon.

The invention relates to an air purifier (10) and an air purifying device comprising the same (10). The air purifier (10) comprises a plasma generator (2), a filtering device (3) and a fan (4) which are sequentially arranged along the flowing direction of air, wherein a main channel in which air flows is formed among the plasma generator, the filtering device and the fan. The air purifier further comprises a waste treating device (5), a first valve (7), a second valve (8) and a heating device (6), wherein the waste treating device (5) is connected with the main channel between the plasma generator (2) and the filtering device (3) by means of a branch channel, the first valve (7) is arranged on the main channel, and positioned between the plasma generator (2) and the branch channel; the second valve (8) is arranged on the branch channel; and the heating device (6) is arranged around the filtering device (3). The air purifier (10) is capable of performing outdoor emission or collection on ozone remained in the air purifier (10), is capable of achieving regeneration of a filtering layer, and is capable of treating waste generated by regeneration of the filtering layer by means of heating.

The invention relates to an active carbon filter core and a preparation method thereof. The active carbon filter core comprises is prepared from the following raw materials in parts by weight: 150 parts of polyethylene, 200 parts of active carbon, 100 parts of magnesium and 35 parts of a KDF filter material, wherein the iodine adsorption value of the active carbon is 1000-1200. The preparation method comprises the following steps: (1) mixing and uniformly stirring the polyethylene, the active carbon, the magnesium and the KDF filter material to obtain a mixed material; (2) putting the mixed material into a mould, then adding into a furnace for sintering heat treatment, cooling, and demoulding to obtain the active carbon filter core. The active carbon filter core has the beneficial effectsas follows: through a scientific ratio of the raw materials, the defects that the conventional active carbon filter core only uses an active carbon material and the adsorbing and purifying effects ofthe active carbon are poor are overcome; the active carbon has the particle size of 80-325 meshes, the adsorbing effect of the active carbon is fully played, and the purifying effect of the filter core is enhanced; a bonding moulding material in the filter core selects ultra-high molecular weight polyethylene, so that a water passage is not blocked, and the effect of the filter material is fully played; the filter core is firm, durable, good in gas diffusion, strong in filtration and strong in adsorption.

The invention relates to a preparation method of a flower cluster-shaped zinc oxide hybrid material based on a cellulose nanosphere crystal as a template. The preparation method utilizes a cellulose nanosphere crystal as a template, a soluble zinc salt as a zinc source and an alkali solution as a pH conditioning agent for adjusting solution pH to 10.5-13, and comprises the following steps of stirring the template and the zinc source, heating the mixture to a temperature of 100-140 DEG C to obtain white precipitates, carrying out suction filtration on the white precipitates, carrying out water washing, putting the white precipitates into an oven at a temperature of 60-120 DEG C, and carrying out drying for 1-24h to obtain the flower cluster-shaped hybrid material which utilizes a cellulose nanosphere crystal as a template and comprises zinc oxide nanometer rods. The preparation method is simple, can be operated easily, does not pollute the environment, and is suitable for industrial large-scale production. The hybrid material has small and controllable particle sizes, a high degree of crystallization, good dispersibility, less surface defects, excellent bactericidal effect and dye degradation performances and a wide application range in the field of water purification, medical materials and dye treatment.

The invention discloses a synthetic method of a collagen hyperbranched polyester / metallic ion loaded fluoride adsorbent. The synthetic method is characterized in that terminal hydroxyl hyperbranched polyester is grafted to collagen under the effect of a cross-linking agent to increase the content of surface active group in collagen; the prepared hyperbranched polyester loaded collagen is complexed with metallic ion; and then the complexed and hyperbranched polyester / metallic ion loaded collagen can be utilized for treating fluoride-containing wastewater. The synthetic method is simple, and industrial production is easy to realize; the prepared product shows high selectivity for the fluoride in an aqueous solution and can perform complete adsorption; the collagen of the waste leather in tanning process can be used for treating the fluoride-containing wastewater after being modified, so that the purposes of treating sewage with waste and maximizing the economic benefit can be reached.