150results about How to "No need to recycle" patented technology

The invention belongs to the technical fields of a novel material as well as preparation, and particularly relates to mesoporous graphene foam as well as a preparation method thereof. The invention realizes hydrothermal preparation of a magnesium oxide texture structure and preparation of the mesoporous graphene foam by using textured magnesium oxide as a template. The mesoporous graphene foam material has abundant mesoporous structures and excellent electric property and can be used as an electrode material of batteries and supercapacitors, so that the energy density and the power density of the batteries or the supercapacitors are expectedly improved to a great extent. The cycling stability of the mesoporous graphene foam material is increased, and the mesoporous graphene foam material combined with materials with high draw ratio or the mesoporous graphene foam material can soften energy storage apparatuses. The advantages have important meaning for realization of commercialization of a new generation of energy storage apparatuses for electromobiles and development of smaller, lighter and flexible portable mobile power supplies. The business prospect is wide. Meanwhile, preparation processes of the high temperature hydrothermal method and a fluidized bed can realize engineering enlargement, so that the method is expected to be industrialized.

The invention relates to a preparation method of a sequential black mesoporous titanium dioxide visible light catalyst film. The invention aims to solve the problems that titanium dioxide prepared by the existing method cannot effectively absorb visible light of sunlight and a surface-hydrogenated titanium dioxide (black titanium dioxide) catalyst is difficult to recover. The preparation method is implemented by the following steps: 1, soaking: soaking a porous ceramic film into titanium dioxide sol; 2, drying: drying at the temperature of 60 to 90 DEG C for 12 to 24 hours to obtain a porous ceramic film of the titanium dioxide sol; 3, performing heat treatment: maintaining the temperature of 400 to 800 DEG C for 2 to 8 hours to obtain the porous ceramic film of the titanium dioxide sol after heat treatment; and 4, hydrogenating: hydrogenating for 2 to 10 hours under the condition of protective gas to obtain the sequential black mesoporous titanium dioxide visible light catalyst film. The preparation method of the sequential black mesoporous titanium dioxide visible light catalyst film is applied to the field of water treatment.

The invention relates to a process for producing high-viscosity chips by applying a solid-phase viscosifying technology, comprising the following steps of: obtaining extracted nylon 6 chips according to a conventional production process of spinning nylon 6 chips, and introducing into a drying tower; leading the chips to flow in the drying tower from top to bottom in a plunger-type mode and fully contact with nitrogen gas, wherein the hot nitrogen gas for drying is introduced into the drying tower from the bottom and the middle of the tower in a two-current mode; keeping the chips stay in the drying tower for about 24 hours; and delivering the dried chips to a chip cooling bin after the flow is controlled by a metering delivering valve, and delivering the chips to a finished product bin through a gas-flow conveying device after the chips are cooled to reach a qualified temperature under the circulation cooling of cold nitrogen gas flow.

The invention relates to a small constant-pressure coking device and a constant-pressure coking method. The device comprises an experiment coke oven, a temperature controller, a constant-pressure system and a control system, wherein the experiment coke oven is provided with a plurality of groups of silicon carbide rods, a resistance wire and a coking chamber, the constant-pressure system is composed of a hydraulic pump, a buffer cylinder and a movable press plate, a push rod of the buffer cylinder is connected with the movable press plate through a first hollow pipe and can drive the movable press plate to move up and down in the coking chamber, and the bottom end of the first hollow pipe penetrates through the movable press plate to be communicated with the interior space of the coking side of the coking chamber; a temperature sensor is arranged in the coking chamber, a displacement sensor is arranged on the top of the experimental coke oven, and an oil pressure regulator is arranged on a hydraulic pipeline between the hydraulic pump and the buffer cylinder. According to the device and method, coking can be conducted under the constant-pressure condition, so that the correspondence between pressure and coke quality is obtained, or comparative study is conducted on the quality of coke of different coal types under the same pressure. The device and method have great guiding significance in coal blending for coking and coking mechanism research, and the purposes of optimizing coking production process, saving coking equipment investment and effectively utilizing resources are realized.

The invention discloses a method for preparing polypropylene grafted with acrylic acid through supercritical carbon dioxide. The method comprises the following steps: (1) at a temperature of between 40 and 100 DEG C and the pressure of between 7 and 20 MPa, swelling polypropylene by the supercritical carbon dioxide and dissolving acrylic acid and an initiator; making acrylic acid and the initiator impregnate into a polypropylene matrix with the swelling and impregnation time of between 1 and 8 hours; (2) at the grafting reaction temperature of between 70 and 160 DEG C and the grafting reaction pressure of between 8 and 30 MPa, decomposing the initiator to initiate the grafting reaction; and (3) after reaction for 1 to 5 hours, carrying out decarbonation through pressure reduction so as to obtain the polypropylene grafted with the acrylic acid. The method with a simple operating process has no solvent reclaiming, thereby contributing to environmental protection. The prepared modified polypropylene has high grafting ratio, low crosslinking degree, even grafting and low graft degradation.

The present invention discloses the process of solid phase grafting maleic anhydride onto polypropylene in supercritical CO2 environment. The grafting process includes the following steps: setting polypropylene, maleic anhydride and initiator in supercritical CO2 to swell and penetrate polypropylene; and subsequent reaction in supercritical CO2 for 1-5 hr to obtain the grafted product. The grafted product has grafting rate upto 0.5 %, reaching the grafting level of melting grafting, and no serious molecular weight degradation. The process of the present invention is simple, and has no solvent recovering, no environmental pollution, homogeneous grafting and less degradation of the grafted product.

The invention discloses a nano silver polyester biodegradable preservative film, which is prepared by steps of chain extension and modification of dihydric alcohol copolyester of diacid and fatty group by introducing aromatic group and fatty group, the nano silver polyester biodegradable preservative film has strong antibiosis, anticorrosion and fresh-keeping functions, greatly increases the storage and fresh-keeping period of the food, and has modified atmosphere function; in addition, the nano silver polyester biodegradable preservative film has the advantages of excellent performance, high molecular weight, high branching degree, high crystallization degree, less impurity, no toxicity, and biodegradable performance by burying in soil after discharging.

The present invention provides a absorptive medical chitosan suture and its production process. The chitosan material is produced into the absorptive medical chitosan suture through a wet spinning process including the steps of compounding the chitosan into spun slurry in certain concentration, filtering, defoaming, metering, solidification, stretching, washing, oiling, twisting and sterilizing. The production process uses safe and cheap solvent system comprising acetic acid and acetate with pH greater than 3, and the chitosan slurry has high viscosity, high deacetylation degree and high stability. The absorptive medical chitosan suture has high tension strength and can meet the requirement of clinical use.

The invention discloses a method for preparing activated carbon by using flax straws. The method comprises the following technological processes of: performing treatments of peeling, crushing, sieving through a 40-mesh screen, drying for 12-24h at 105-120 DEG C and the like on the flax straws to obtain absolute dry pretreated materials, uniformly mixing the absolute dry pretreated materials with an activator solution, impregnating for 4-12h at room temperature, then drying for 12-24h at 105-120 DEG C, placing in a muffle furnace, heating to 700-900 DEG C, preserving the heat for 1-3h, naturally cooling to room temperature, and then performing acid cleaning, water washing, drying, grinding, and sieving through a 200-mesh screen to obtain a finished product of powdery activated carbon. In the method, the flax straws are used as raw materials, a novel activator with low impregnation ratio is adopted to prepare the activated carbon with special performance. In addition, the activated carbon with favorable performance is prepared by means of multiple activation functions induced by an activator high-temperature pyrolysis effect in the method, so that the dose of the activator and the production cost are reduced, and the obvious economic and social benefits are achieved.

The invention discloses a strong roof support pier column and a method for protecting a section coal pillar, and belongs to an underground coal mine roof support method. The strong roof support pier column is of a cylindrical structure and is composed of a pier column molding structure comprising an inner bag, an outer bag, a base bag, a cast iron base, circular steel hoops for increasing the pier column strength, construction bag hanging and fixing hooks, heightening hanging belts, square timber on the upper portion of a construction bag and filling materials in the bag. A filling port is formed in the outer wall of the upper portion of the construction bag. The filling materials are concrete added with an accelerating agent and an expanding agent. The invention further provides a constructing method of the strong roof support pier column. The strong roof support pier column is pushed forwards along with a working face when used for section coal pillar protection, and the strong roof support pier column is constructed behind a working face support. The strong roof support pier column has the advantages of being simple in structure, high in support strength, capable of providing active support force, good in yielding performance, convenient to construct, free of recycle and the like, is particularly suitable for protecting the section coal pillar on the goaf side, and can also be used for roof support in other areas of a coal mine.

The invention relates to a prestressed concrete wet joint construction robot capable of automatic chiseling and grooving. The lower end of the adjustment device is provided with a chisel and slotting device, and the lower end of the chisel slotting device is provided with a crushing and recycling device. The flange is installed on the lifting support plate, the middle part of the lifting support plate is provided with a lifting hole, the lifting hole is provided with a lifting drive mechanism, and the upper end of the lifting drive mechanism is provided with a lifting fixing mechanism. The present invention can solve the problem existing in the existing wet joint chiseling and grooving process that requires manual construction with the help of existing chiseling equipment, and manually controls the chisel construction according to the depth of the joint, and can realize automatic chiseling of wet joint construction function of the slot.

The invention discloses a dehalogenation inhibitor. The dehalogenation inhibitor is prepared by mixing the following ingredients in percentage by weight: 55-80% of sodium phosphite, and 20-45% of ethanol amine. The dehalogenation inhibitor has a good dehalogenation inhibition effect in the process of preparing chlorinated aromatic amine through hydrogenation reduction of chlorinated nitro-aromatics, the content of phenylamine is not more than 1%, the dehalogenation inhibitor is less in usage amount, low in cost and free from recovery, and the usage amount of the dehalogenation inhibitor takes up 0.6% of halogenated nitro-aromatics in weight.

The invention discloses a polyester biodegradable shopping bag, which is used for supermarket shopping and is prepared by chain extension and modification of diacid and dihydric alcohol copolyester of diacid fatty group of introduced aromatic group, and the polyester biodegradable shopping bag has the advantages of excellent performance, high molecular weight, high branching degree, high crystallization degree, less and nontoxic impurity content, and biodegradable performance.

The invention proposes a heterogeneous multi-mode intelligent power management system and method of an unmanned underwater vehicle. The system comprises a solar controllable charging circuit, a wireless controllable charging circuit, a charging port circuit, a lithium battery pack charge-discharge switching circuit, a self-adaptive matching output circuit and a microprogram control unit (MCU) control circuit, wherein solar and wireless multi-mode charging of a lithium battery pack is achieved jointly by the solar controllable charging circuit, the wireless controllable charging circuit and thecharging port circuit, a single lithium battery in the lithium battery pack is charged and discharged cyclically by the lithium battery pack charge-discharge switching circuit, the self-adaptive matching output circuit is used for achieving output of different voltages, and the MCU control circuit is used for giving out a control signal so that the whole power management system is controlled to work in order. By the system, the endurance, the stability and the applicability of unmanned underwater vehicle can be effectively improved.

The invention relates to biodegradable mulch with a compound function, which takes the biodegradable mulch as a carrier. A functional preparation is sprayed on one surface of the mulch so as to form the functional biodegradable mulch; and the biodegradable mulch comprises the following components based on weight percentage: 33-68% of master batches, 30-65% of 7042 and 5-7% of 1F7B, and the functional preparation is insecticide or herbicide or nutrient solution. The biodegradable mulch has the positive effects as follows: the surface of the biodegradable mulch can be directly compounded with an oily, milky and/or humid powder functional preparation; the mulch can effectively and slowly release the insecticide, the herbicide and the nutrient solution so as to achieve better effects in killing insects, weeding and providing nutrition for crops; the mulch can adapt to different climate and soil environments, and meet the requirements of heat preservation and soil moisture conservation of different crops; after completing functional actions, the mulch can be automatically degraded without pollution; and the mulch has the advantages of convenient use and lower cost, thus obviously improving the agricultural production efficiency.

The invention discloses a water soluble polyester slurry for sizing DTY polyester low elastic filaments and a preparation method thereof, and belongs to the technical field of water soluble polyester slurry. The invention aims to solve the problems that the solid contents of acrylic acid slurry can only reach 30% or so, and the bonding force between the acrylic acid slurry and hydrophobic polyester fibers is weak. The water soluble polyester slurry is characterized by being composed of recycled polyester, glycol accounting for 5 to 10 wt% of polyester, m-phthalic acid-5-sulfonate or derivatives thereof accounting for 10 to 20 wt% of polyester, m-phthalic acid accounting for 3 to 15 wt% of polyester, other dibasic alcohols accounting for 5 to 10 wt% of polyester, a catalyst accounting for 0.03 to 0.15 wt% of polyester, and polyoxyethylene and/or polytetrahydrofuran accounting for 0 to 5 wt% of polyester. The slurry is prepared through steps of alcoholysis, copolymerization, cooling, and grinding. The slurry has a high glass-transition temperature, excellent chemical stability, anti-hydrolysis performance, and thermal stability, thus is convenient for transportation and storage, also has strong flexibility and a large breaking elongation rate, and is mainly used to size polyester low elastic filaments (DTY).

The invention discloses a biodegradable mulching film, which comprises the following components in percentage by weight: 33 to 68 percent of alloy master particle, 30 to 65 percent of 7042(LDPE), and 5 to 7 percent of 1F7B. The alloy master particles comprise the following components in percentage by weight: 0.01 to 0.03 percent of tert-butyl peroxide isopropyl benzene, 1.50 to 2.25 percent of fumaric acid, 4.50 to 5.60 percent of microcrystalline wax, 3.60 to 5.40 percent of polyethylene wax, 3.00 to 4.20 percent of MG70, 9.00 to 13.0 percent of N210 and 68 to 80 percent of cornstarch. The biodegradable mulching film has the advantages that: the biodegradable mulching film can adapt to different climates and soil environments in various places as well as the requirements of different crops, the mulching film is degraded in the design life without influencing the planting of the crops, and the mulching film is degraded uniformly and thoroughly; the balance problem of water resistance and hydrophily is solved, and the mulching film has higher ground adherence; and the specific gravity is small, the thickness of the mulching film is only 0.005mm, the material consumption is low and use cost is low, and the biodegradable mulching film can be popularized and applied on a large scale.

The invention relates to a multifunctional washing and sweeping vehicle. The multifunctional washing and sweeping vehicle comprises a cab, a driving device, a battery, an electric control device, a chassis, a clear water tank and a sewage tank. The lower end of the chassis is movably connected with a sucker through a lifting device. A sewage suction port of the sucker is connected with a sewage pipeline and is communicated with the sewage tank; an air duct is arranged above a tank body of the sewage tank and is connected with a fan in a closed manner; the fan provides adsorption power for thesucker; a front spray rod is mounted at the front end of the chassis; side spray rods are mounted in the middle of the chassis and at the front end of the sucker; the front spray rod and the side spray rods are movably connected to a vehicle body through spray rod brackets respectively; the front spray rod and the side spray rods are connected with a high-pressure water pump through water pipelines and are connected with the clear water tank; and the high-pressure water pump provides waterway power. The multifunctional washing and sweeping vehicle completely adopts batteries as a power source,and integrates washing and sweeping, flushing, water drying, garbage collection and automatic garbage dumping into a whole.

The invention discloses a method for manufacturing a diffluent polyester fiber siro-spun untwisted towel yarn. The method is characterized in that: (1) processing of cotton fibers, which includes orderly cotton distributing, cotton cleaning, cotton carding, cotton combing, drawing and roving; (2) processing of diffluent polyester fibers, which includes orderly cotton cleaning, cotton carding, cotton combing, drawing and roving; (3) accomplishing subsequent processing of the processed diffluent polyester fiber and cotton fiber, the twist factor of the cotton yarn is 230-350 and the twist factor of the diffluent polyester fiber is 230-350 during the turning processing of spinning spindles; (4) blended spinning proportion between the diffluent polyester fiber and the cotton fiber, according to which the content of the diffluent polyester fiber accounts for 10 to 40 percent of the total fiber content. The invention adopts the diffluent polyester fiber as raw material, and the towel obtained from the untwisted towel yarn is easy in vinylon dissolution, convenient in recycling of polyester, environment-friendly and has no pollution. The towel stays out of beard hair and is stable in pile loop shape.

The invention discloses a plant-animal-combined efficient heavy-metal-contaminated soil repairing method. Through large-scale earthworm propagation, earthworm cocoons are produced in a batched manner, and the situation that a batch of the earthworm cocoons die after being inoculated into the soil directly due to high-concentration pollution is prevented. Plants with green seedlings planted in the earlier period serve as the feed, the earthworm propagation cost is lowered, and the requirements for a stocking area are lowered; the plants and earthworm breeding devices are arranged in a strip-shaped manner at intervals, meanwhile the earthworm breeding devices are convenient to place, and the earthworm cocoon processing difficulty is lowered; and meanwhile, the biodegradable plant fibers are arranged and do not need to be recycled, processing efficiency is improved, and large-scale high-efficiency processing is facilitated in the meantime. A separating conveyor belt is utilized to recycle earthworms, the processing efficiency of the soil is greatly improved, and the separation difficulty and cost are lowered. The earthworm breeding devices are provided with earthworm sustained-release capsules, the situation that a batch of the earthworms die at the same time is prevented, sustained-release is performed according to the sustained-release, and gradient repair is achieved.