25results about How to "Large pores" patented technology

The invention relates to the field of fertilizers, in particular to a macroelement water-soluble fertilizer and a preparation method thereof.The preparation method comprises the steps that a composite biochar material is prepared from biochar, loaded metal modified biochar and an iron metal material, and then the composite biochar material is compounded with tripotassium phosphate, monopotassium phosphate, disodium octoborate tetrahydrate, zinc sulfate monohydrate and the like; the finally prepared fertilizer can realize accurate fertilizer supply, the iron metal organic framework material efficiently converts nitrate nitrogen into ammonium nitrogen and cooperates with a large amount of trace elements such as tripotassium phosphate, the requirements of crops at all stages are met, nutrients in key periods are guaranteed, pores of the composite biochar material adsorb the nutrients, nutrient slow release is realized, root system interpenetration resistance is reduced, stress resistance is enhanced, and the yield of the crops is increased. The soil conditioner has the advantages of simple preparation process, reduction of growth hindrance, optimization of soil aggregates, increase of pores, reduction of volume weight, improvement of ventilation, water permeability and water and fertilizer retention capabilities, substantial agricultural economy energization, substantial yield increase of crops, and wide application prospects.

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The utility model relates to the technical field of textile fabrics, provides a double-sided knitted fabric, and solves the problems that the existing double-sided knitted fabric is poor in sweat one-way transmission capability, poor in moisture absorption and air permeability and poor in comfort. Which comprises an upper surface layer, a middle layer and a lower surface layer which are sequentially laminated, and is characterized in that a plurality of honeycomb-shaped meshes are formed in the upper surface layer, a plurality of transverse meshes are formed in the lower surface layer, the aperture of the honeycomb-shaped meshes is larger than that of the transverse meshes, the honeycomb-shaped meshes and the transverse meshes are uniformly arranged at intervals, and the honeycomb-shaped meshes and the transverse meshes are uniformly arranged at intervals. The middle layer is formed by connecting yarns which are interwoven between the upper surface layer and the lower surface layer.

The invention relates to the technical field of civil engineering materials, and discloses a collapsible loess curing agent as well as a preparation method and a use method thereof. The collapsible loess curing agent is prepared from the following raw materials in parts by weight: 20-40 parts of slag powder, 10-20 parts of modified silica fume, 10-20 parts of biogel, 10-20 parts of desulfurized gypsum, 5-10 parts of polymer fibers, 10-30 parts of alkaline residues and 15-25 parts of cement, the components of the collapsible loess curing agent are adjusted, and on the basis of adding the cement, the collapsible loess curing agent is prepared from the following raw materials in parts by weight: 20-40 parts of slag powder, 10-20 parts of modified silica fume, 10-20 parts of biogel, 10-20 parts of desulfurized gypsum, 5-10 parts of polymer fibers, 10-30 parts of alkaline the slag powder, the desulfurized gypsum, the alkaline residues, the modified silica fume, the biological glue and the polymer fibers are synergistically matched, so that the permeability coefficient, the compressive strength and the breaking strength of the cured collapsible loess are remarkably improved, and the collapsible loess in northern areas such as Gansu, Xinjiang and the like has excellent impermeability and mechanical properties after being cured; the material can be used as a high-quality road building material.

The invention discloses zero-valent iron shell reinforced microbial immobilized particles as well as preparation and application thereof, and belongs to the technical field of wastewater treatment. According to the preparation method, anaerobic digestion bacteria and a zero-valent iron reinforced material are embedded in porous organic gel formed by cross-linking polymerization of polyvinyl alcohol or sodium alginate in a layered manner, so that stress of an external poor water quality environment and the zero-valent iron material on microorganisms is reduced; in the prepared zero-valent iron shell reinforced microbial immobilized particle, the shell containing the zero-valent iron can protect microorganisms from being disturbed by external adverse environmental conditions, the environmental adaptability of the microorganisms is improved, and meanwhile the biological activity of the microorganisms in the porous inner core is reinforced; on the other hand, the biological toxicity of the zero-valent iron material to microorganisms is reduced, and the broad-spectrum applicability of the zero-valent iron is improved.

The present invention relates to the field of biochar materials, and in particular to a biochar material and a preparation method and application thereof. The present invention provides a method for preparing a biochar material, characterized in that it comprises the following steps: S101 obtaining a first mixed solution; S102 obtaining a first precursor; S103 obtaining a second precursor; S104 obtaining a first material; S105 obtaining the biochar material. The biochar material prepared by the present invention can perform directional adsorption on pigments (such as lutein and chlorophyll) and is suitable for application to QuEChERS pretreatment.

This invention provides a method for preparing bamboo fiber for textiles, belonging to the field of fiber extraction technology. The preparation method includes bamboo strip pretreatment, enzyme immobilization, and bamboo fiber extraction. The bamboo strip pretreatment method is as follows: whole bamboo is taken, crushed and cut, and bamboo strips with a length of 6-8 cm, a width of 0.5-0.7 cm, and a thickness of 0.3-0.5 cm are taken. The strips are ultrasonically treated for 25-35 min, then soaked in NaOH solution for 30-40 min, filtered, washed with deionized water until neutral, and dried to a moisture content of 15-20% to obtain pretreated bamboo strips. The bamboo fiber extracted by this invention has a tensile strength of 1.21-1.28 GPa, a breaking elongation of 4.09-4.17%, an elastic modulus of 37.15-37.26 GPa, and an average enzyme activity retention rate of 66.3-68.4% after 10 reuses.

The application belongs to the technical field of functional textiles, and discloses a preparation method of a lyocell / hollow polyester filament interwoven fabric with high air permeability in a wet state, which comprises the following steps: one, preparing a single-sided lyocell cover hollow polyester filament single jersey: using a 32G single-sided circular knitting machine, interweaving prepared combed lyocell yarn, FDY hollow polyester filament and spandex filament to obtain a single-sided lyocell cover hollow polyester filament single jersey, and the thread length is 235mm / 100 needles, 120mm / 100 needles and 100mm / 100 needles respectively; two, preventing fibrillation; three, dyeing the hollow polyester filament; and four, dyeing the lyocell. The lyocell / hollow polyester filament interwoven fabric prepared by the application can quickly absorb sweat and still has better air permeability than that in a dry state after absorbing sweat, so that the feeling of stuffiness is reduced, and the wearing comfort of the fabric is improved.

The invention relates to a through-hole type ultra-high molecular weight polyethylene fiber as well as a preparation method and application thereof. The manufacturing method of the through-hole type ultra-high molecular weight polyethylene fiber comprises the following steps: 1) mixing ultra-high molecular weight polyethylene, acid-soluble inorganic particles and a solvent to prepare a spinning solution, 2) extruding the spinning solution to form a spinning trickle, 3) removing at least a part of the solvent from the spinning trickle to obtain a dry precursor, and 4) drying the dry precursor to obtain the through-hole type ultra-high molecular weight polyethylene fiber. And 4) stretching the dry precursor in two or more stages, and spraying an acid solution to the dry precursor to dissolve the acid-soluble inorganic particles while one or more of these stages are performed, thereby obtaining the through-hole type ultra-high molecular weight polyethylene fiber. The through-hole type ultra-high molecular weight polyethylene fiber can float on seawater and rapidly absorb oil, and the problems that oil leaks and diffuses rapidly and is difficult to collect are solved.

The invention discloses a lithium niobium titanium negative electrode-lithium iron manganese phosphate positive electrode lithium ion battery, comprising a positive electrode, a negative electrode and an electrolyte; the active material in the positive electrode is lithium iron manganese phosphate; the active material in the negative electrode is a double-shell lithium niobium titanium-lithium aluminum titanium phosphate composite hollow microsphere, and the preparation steps are: preparation of monodisperse SiO2 microspheres; preparation of SiO2@lithium niobium titanium microspheres; preparation of SiO2@lithium niobium titanium@SiO2 microspheres; preparation of SiO2@lithium niobium titanium@SiO2@LATP microspheres; primary calcination; template removal; carbon coating. The invention adopts double-shell lithium niobium titanium-lithium aluminum titanium phosphate composite hollow microspheres as negative electrode materials, which can significantly improve the electronic conductivity and ionic conductivity of the negative electrode materials, improve the rate performance of the battery and the cycle performance at high rates.

The utility model relates to the technical field of cool fabric processing, in particular to cool fabric finishing equipment which comprises an alkali liquor pool, a conveying roller, a motor, a first conveying roller, a rotating shaft and the like. A plurality of conveying rollers are mounted on the alkali liquor pool; a motor is mounted on the alkali liquor pool; a first conveying roller is rotationally connected into the alkali liquor pool; a rotating shaft is rotationally connected into the alkali liquor pool, the rotating shaft is fixedly connected with an output shaft of the motor, and the first conveying roller is located below the rotating shaft. The pressing rod is in contact with the inclined fabric between the left conveying roller and the first conveying roller and presses the fabric, so that the fabric between the left conveying roller and the first conveying roller is in a tight state, pores between the fabric are enlarged, the flowing resistance of a caustic soda solution is reduced, and the caustic soda solution better enters the interior of the fabric.

The invention relates to an activated carbon material and a preparation method and application thereof, the activated carbon material comprises modified activated carbon and an active component loaded on the modified activated carbon, and the active component comprises bivalent copper salt; the surface of the modified activated carbon contains carboxyl functional groups, and the specific surface area of the activated carbon material is 50 m < 2 > / g-550 m < 2 > / g. The modified activated carbon with a high specific surface area is adopted as a carrier, on one hand, the surface of the modified activated carbon contains carboxyl functional groups, and NH3 molecules can be effectively adsorbed; on the other hand, the modified activated carbon has a porous structure and can provide more spaces and sites for loading of Cu < 2 + >, Cu < 2 + > highly dispersed on the surface of the modified activated carbon provides rich Lewis acid sites, and a copper-ammonia complex [Cu (NH3) 4] < 2 + > is finally formed, so that the utilization rate of Cu < 2 + > and the NH3 adsorption capacity of the activated carbon material at room temperature can be improved.

The application discloses a kind of carbon dioxide corrosion inhibitor based on mannich base and its preparation method and application, belong to petroleum chemical industry metal material protection technical field.Main agent mannich base is with 3-amino crotonitrile, 3-hydrazine quinoline, phenylacetone, cinnamaldehyde as main, it is prepared by condensation, mannich two-step reaction, its structure is as shown in formula A.The inhibitor includes by mass percentage:mannich base A 30~40%, alkylamine 8~16%, potassium iodide 0.3~0.6%, surfactant 10~20%, organic solvent 30~60%.Mannich base A synthesis is simple, post-treatment is convenient, molecule contains quinoline, pyrazole, carbonyl, double bond, phenyl functional group simultaneously, can be well adsorbed on carbon steel surface and form dense protective film to prevent the invasion of corrosive medium.Add alkylamine, potassium iodide, surfactant, organic solvent, water solubility increases after compounding, corrosion inhibition effect is enhanced.The corrosion inhibitor has the characteristics such as small amount, high efficiency, wide application range, and has wide application prospect in oil and gas production.

The invention discloses a cesium extraction composite material and a preparation method and application thereof.The preparation method comprises the steps that tetrabutyl titanate and absolute ethyl alcohol are evenly mixed and stirred, and a solution A is prepared; dissolving cesium acetate, adding oxalic acid, heating and stirring to obtain a solution B; slowly adding the solution B into the solution A at a certain flow rate, uniformly stirring to obtain a precursor solution of cesium titanate, and adding concentrated hydrochloric acid to adjust the pH value for acid modification; slowly adding nano silicon dioxide into the precursor solution according to a certain loading capacity; performing ultrasonic treatment on the mixed solution, stirring in a water bath, and drying in a drying oven; and roasting the dried product in a muffle furnace to obtain the composite material. According to the invention, tetrabutyl titanate is used as a source of titanic acid, and the tetrabutyl titanate needs to be protonated in the reaction to change the space structure and charge distribution, so that the tetrabutyl titanate is matched with the size and charge distribution of cesium ions, and the adsorption capacity is improved. By loading the nano silicon dioxide, pores can be increased, and the influence of low adsorption rate caused by a compact layered structure is solved.

This invention relates to the field of wastewater treatment technology, and more particularly to a method for enhancing anaerobic ammonia oxidation (AAO) denitrification using iron-loaded polyurethane porous materials. The method includes the following steps: Anaerobic ammonia oxidation sludge, iron-loaded polyurethane porous materials, and wastewater containing ammonia nitrogen and nitrite nitrogen are thoroughly mixed in an anaerobic reactor and reacted under anaerobic conditions at a temperature of 31-35°C. The iron-loaded polyurethane porous materials are prepared as follows: polyurethane sponge is selected as a carrier, cut and cleaned, and then immersed and stirred in a mixed iron salt solution for a period of time. The pH of the mixed solution is adjusted to alkaline, resulting in the formation of a red precipitate. The iron-loaded polyurethane porous materials are then hydrothermally synthesized. The mixed iron salt solution includes ferric chloride and ferric nitrate. The carrier material prepared by this invention, when applied to an anaerobic ammonia oxidation system, can effectively shorten the process start-up time, promote the enrichment and biofilm formation of anaerobic ammonia oxidizing bacteria, and achieve a high total nitrogen removal rate.

The present invention belongs to the technical field of coal seam water injection and dust suppression, and in particular, relates to a biological pore expansion and wetting agent, a preparation method thereof, and an application thereof. The biological pore expansion and wetting agent of the present invention comprises the following components: an acid-producing bacterial group, a nutrient substance, a biological surfactant, and ethanol wastewater. The present invention enriches acetic acid bacteria from the vinegar mash discarded from the vinegar brewing industry under non-sterile conditions, mixes it with a culture solution containing ethanol wastewater to prepare a biological pore expansion and wetting agent, and injects it into the coal seam water injection hole, so that the acetic acid bacteria group adheres to the surface of the coal seam to oxidize ethanol to produce acetic acid, a corrosive substance, to expand the pores of the coal seam. The present invention uses an acetic acid bacteria culture solution containing ethanol wastewater for treatment, which can effectively solve the problem that the coal seam is not easily wetted by water and difficult to penetrate, improves the water injection efficiency of the coal seam, expands the wetting radius of the coal seam, and effectively reduces the dust production of the coal seam working face.

The utility model provides an irregular through hole texture tatting vamp, and relates to the field of spinning. The tatting vamp comprises a through hole weave and a common grain weave, the number of weave point warps of the through hole weave is two or more, the number of weave point wefts of the through hole weave is two or more, all warps and wefts of the same weave point of the through hole weave are gathered into a bundle, and all wefts of the same weave point of the through hole weave are gathered into a bundle. The through hole weave and the common grain weave are integrally and continuously woven; by adopting a specific weaving machine and a specific weaving method, the irregular through hole weave tatting vamp is woven, all warps and wefts at the same weave point of the through hole weave are respectively gathered into bundles, and air holes are formed among the weave points, so that the purpose that the pores of the weave points can be increased without twisting the warps is achieved; meanwhile, the boundary between the through hole weave and the common line weave can form an irregular curve, so that the pattern feeling is added to the fabric, the permeability of the fabric can be improved, and the problem of poor air permeability of the woven fabric is solved.

The invention relates to the technical field of lithium adsorbents, in particular to a titanium lithium adsorbent and a preparation method thereof.The preparation method comprises the steps that a lithium source and a titanium source are added into a mixture of polyethylene glycol, an additive and water, ball milling dispersion is conducted, prefabricated slurry is obtained, and the additive comprises at least one of cane sugar, glucose, fructose, starch and citric acid; performing spray drying on the prefabricated slurry to prepare dry powder; calcining the dried powder to prepare lithium metatitanate; and cleaning the lithium metatitanate with an acid solution. According to the titanium lithium adsorbent prepared by the preparation method, the wettability can be improved, and the dissolution loss and falling of particles can be reduced, so that the extraction rate of lithium is improved.

The application discloses a method of backwashing filter device based on electromagnetic control, which comprises a filter tank shell, a composite filter layer arranged in the filter tank shell, and an electromagnetic system, wherein the composite filter layer comprises magnetic filter material and non-magnetic filter material; the electromagnetic system comprises an electromagnet generator and a magnetic field generating unit arranged around the filter tank shell; the magnetic field generating unit comprises a plurality of electromagnet cores and coils wound around the electromagnet cores; the electromagnet generator is electrically connected with the coils through wires and provides direct current or alternating current to the coils. In the backwashing stage, the alternating action of the direct current and alternating current magnetic field guides the spatial reconstruction or micro-vibration of the magnetic filter material, thereby enhancing the filter layer flushing effect and improving the backwashing efficiency. The device realizes low energy consumption, low water consumption and high efficiency backwashing, and has the advantages of compact structure, high automation degree and strong adaptability, and is suitable for the solid-liquid separation process of mine dewatering water, industrial circulating water and sewage treatment.

The utility model provides a tatting vamp fixed through threading of a through hole structure, and relates to the field of spinning. The tatting vamp comprises a through hole weave, a common grain weave and a consolidation line, the number of warp yarns of weave points of the through hole weave is two or more, the number of weft yarns of the weave points of the through hole weave is two or more, all the warp yarns and the weft yarns of the same weave points of the through hole weave are gathered into bundles, and all the weft yarns of the same weave points of the through hole weave are gathered into bundles. The fixing threads penetrate through holes of the through hole tissues and extend to the outer side of the vamp, and in the subsequent shoemaking process, the fixing threads extending to the outer side of the vamp are fixed in the outsole or the insole of the sole, so that the firmness of the vamp and the sole is improved.

The invention relates to the technical field of green tea processing, in particular to a processing method of chestnut-fragrance green tea, which comprises the following steps: (1) tea leaf treatment, (2) tea leaf fixation, (3) tea leaf fermentation, (4) tea leaf shaping, and (5) drying. According to the method, water in the tea leaves is fully released through layered temperature treatment during tea leaf treatment, meanwhile, the activity of the tea leaves is guaranteed, after microwave treatment, the cell structures of the tea leaves are fully destroyed, the integrity of the cell structures of the tea leaves is further reduced through fixation, the fragrance richness of the tea leaves is improved, and the chestnut fragrance is more sufficient.

The invention relates to the technical field of soil remediation, in particular to a cultivated land soil remediation modifier based on waste biomass and a preparation method thereof.The cultivated land soil remediation modifier comprises, by mass, 5-10% of modified biomass, 5-10% of waste biomass and the balance water. 1-5% of a microbial agent; 1-5% of a gel material; 10 to 20% of bentonite; the balance of organic fertilizer; the preparation method comprises the following steps: S1, preparing the rigid matrix; s2, preparing flexible slurry; s3, preparing a cultivated land soil remediation modifier; according to the arable soil remediation modifier, the modified biomass and the bentonite are used as rigid matrixes, the gel material, the microbial agent and the organic fertilizer are used as flexible slurry, and the rigid matrixes are beneficial for breaking hardening and increasing pores; the flexible slurry improves the water retention capacity, can prevent particles from loosening and collapsing in soil when encountering water, and prolongs the action time of the cultivated land soil remediation modifier.

The present invention discloses a solar-driven high-intensity atmospheric water-collecting composite material, a preparation method and application thereof, and relates to the technical field of gel materials. The solar-driven high-intensity atmospheric water-collecting composite material comprises a gel substrate, and hygroscopic compounds are loaded in the pores and surface of the gel substrate; wherein the gel substrate comprises MXene, chitosan and polyacrylamide. By loading hygroscopic compounds on a gel substrate containing MXene, chitosan and polyacrylamide, the introduced MXene can be used as a photothermal component to give the hydrogel good photothermal conversion performance, relying only on solar energy to analyze and adsorb water without consuming energy; the prepared composite hydrogel material not only has larger pores, but also has very ideal strength and toughness, which is conducive to further broadening its application field.