570results about How to "Guaranteed pure" patented technology

The invention comprises a composite microbial agent applicable to efficiency enhancement of common chemical industry sewage treatment systems. The composite microbial agent applicable to efficiency enhancement of the common chemical industry sewage treatment systems meets the demands on treatment on comment pollutants in existing chemical industry and environmental production as well as on establishment of functional bacteria required by a stable bacteria flora. According to one of the schemes, the composite microbial agent is composed of 108 microorganisms of three major functional types. When the composite microbial agent is added together with microbial growth promoting carriers, nutrient agents and the like into a biochemical system, the composite microbial agent can promote establishment of a complete food chain in the biochemical system through various microorganisms with special pollutant degrading capabilities and comprehensive metabolic manners to enhance utilization and metabolic decomposition of pollutants in sewage through the microorganisms, thereby achieving efficient reduction of COD (chemical oxygen demand), ammonia nitrogen, phosphorous, sulfur and like.

This invention provides a method for preparing rosuvastatin intermediate compound I-XI. The method can ensure a high purity of I-XI, thus ensuring the completeness of the stereoselectivity in subsequent reactions. Although the yield of I-XII from I-X in this invention is a little lower than that in the invention EP 0,521,471 A1, the purification of I-XII only needs a low-efficiency chromatographic column. The method thus has such advantages as low cost and high efficiency.

The invention discloses a production technique of low-temperature pressed rapeseed oil, wherein rapeseeds are cleaned, subjected to impurity removal, subjected to wall breaking based on freezing treatment and then fried to 60-70% rape to contribute to the oil leaching, a pressing technique is utilized in the invention, and a specially treated adsorbent is used for decoloring. A technique of heating after freezing is utilized in the invention to facilitate the cell disruption of the rapeseeds so as to improve the oil extraction rate, and the oil extraction rate is 5-6% higher than that of a traditional pressing method; and the oil is extracted by the pressing technique in the invention, so that no pollution exists, the purity of the oil product is guaranteed, and the oil is all natural and meets the demands of green food.

The invention provides a grapheme-polyaniline super capacitor electrode material which refers to a composite electrode material composed of the polyaniline which deposits on the surface of the grapheme in a constant potentials mode. The shape of the polyaniline is self-supporting and is gained by electrolyzing graphite paper. The polyaniline is on the basement of the graphite paper. The preparation comprise a step of connecting the graphite paper with a positive and negative electrode, immersing the graphite paper in the electrolyte with the process of electrolyzation in 5-50 minutes; a step of taking out the graphite paper of the positive electrode which is washed with distilled water and is dried in a vacuum drying oven; a step of regarding a saturated Ag/AgC1 electrode as a reference electrode and a platinum sheet as a auxiliary electrode. The electrolytic graphite paper which is dealt with positive electrode is regarded as a working electrode. The polyaniline is deposited in the mixed solution of aniline and H2SO4, the deposition voltage is 0.5-1.2 V and the polyaniline is deposited for 1-40minutes. The graphite paper is washed by the distilled water and then is dried by putting into the vacuum drying oven after the graphite paper is taken out. The method has the advantages of being simple in preparation technology, low in cost and avoiding effectively the grapheme from overlapping so as to gain a well conductive electrode material.

The dual water supply system for household includes a soft water module with KDF filter connected to the raw water pipeline, a water softening resin device with salt box and resin jar, an adsorbing module with active carbon with water outlet connected to toilet water pipeline, an ultrafilter module, an RO module with pressurizing water pump, a bath water inlet pipeline, and a pressure container connected to the pure water outlet of the RO module. The dual water supply system makes the drinking water and the living use water flow separately, and has reverse resin regeneration, active carbon surface flushing and ultrafiltering membrane cross flow filtering to complete the timely system washing for eliminating pollutant and prolonging service life.

The invention discloses a full-automatic QuECHERS experimental device and an experimental method. The full-automatic QuECHERS experimental device comprises a multifunctional mechanical arm, a cap screwing module, a liquid adding module, a centrifugal module, a salt adding module, a ceramic proton homogenization module, a nitrogen blowing concentration module, a vortex uniform mixing module and anoscillation module, and can automatically complete sample transferring, addition of extraction liquid, extraction salt and ceramic homogenization protons, oscillation uniform mixing, centrifugal separation and vortex uniform mixing actions; A method adopting the full-automatic QuECHERS experimental device to carry out experiments mainly integrates the processes of sample liquid adding extraction,centrifugal separation, solid phase extraction and nitrogen blowing concentration, so that the time is saved, the manual operation is reduced, the automation is improved, and the errors are reduced.

The invention discloses automatic brush electroplating equipment belonging to the technical field of engine reproduction equipment. The automatic brush electroplating equipment comprises a rack, wherein the rack is slidably provided with a first slide box driven by a first power device along the X direction; the first slide box is slidably provided with a second slide box driven by a second power device along the Y direction; the second slide box is slidably provided with a third slide box driven by a third power device along the Z direction; the third slide box is rotationally provided with a plating pen driven by a fourth power device and arranged along the Z direction; the side, located on the first slide box, on the rack is fixedly provided with a clamp for clamping a workpiece; and the rack is also provided with a plating solution supply and recovery system. By using the automatic brush electroplating equipment provided by the invention, automatic operation is realized, the motion control is precise, the uniformity of a plating layer is ensured, the labor efficiency is increased, and the repaired workpiece is small in size difference; and the automatic brush electroplating equipment is suitable for mass remanufacture.

The invention discloses a method and a device for determining a language model. The method comprises the following steps: acquiring a first corpus, wherein the first corpus is a language text selectedin a preset context; Obtaining a first language model by training the first language data; adopting A first language model to filter the target text to obtain a second corpus, and acquiring a secondlanguage model by training the second corpus, wherein the target text is retrieved using a keyword set extracted from the first corpus as an index. The invention solves the technical problem that theperformance of the corpus is low because the language model in the prior art is only acquired through the strategy of piling up the corpus.

The invention discloses a heat dissipation mechanism for a gearbox of a wind driven generator. A horizontal partition plate is fixedly arranged in an outer case, a water-cooling heat dissipation mechanism is installed at the upper end of the partition plate, a heat dissipation pipe is connected with the water-cooling heat dissipation mechanism, and the heat dissipation pipe extends downwards to the position below the partition plate; and the gear box is located in the middle of the lower end of the outer case, connecting frames are fixedly connected with the lower end of the partition plate, the two connecting frames are located on the two sides of the gear box correspondingly, and the connecting frames are parallel to the side wall, provided with a heat dissipation opening, of the outer case. According to the heat dissipation mechanism, two heat dissipation fans drive air around the gear box to distribution rapidly, low-temperature air dissipates heat of the gear box, the heat dissipation effect on the gear box is improved through air cooling circulation, meanwhile, circulated distribution cooling water in a water cooling heat dissipation mechanism conducts the heat of the gear box, and air cooling and water cooling are carried out synchronously, so that the heat dissipation efficiency and the heat dissipation effect of the gear box are ensured.

The invention discloses a preparation method of a copper zinc tin sulfide/graphene oxide composite semiconductor photocatalyst. The photocatalyst comprises copper zinc tin sulfide coated by graphene oxide. The preparation method comprises the following steps: step 1) uniformly mixing and dispersing 0.05%-0.2% of graphene oxide, 32%-34% of copper compound, 16%-18% of zinc compound, 21%-23% of tin compound and 26%-29% of sulfur compound in a carrying solution to form a precursor solution; step 2) enabling a reaction precursor to react at high temperature so as to prepare the copper zinc tin sulfide/graphene oxide composite semiconductor photocatalyst. The copper zinc tin sulfide/graphene oxide composite compound photocatalyst prepared by the preparation method disclosed by the invention improves the resistance to light dissolution and the resistance to light corrosion, and enables the photocatalyst to stably degrade organic pollutants in a water body for a long time.

The invention discloses an intelligent indoor air replacement and purifying device and method and belongs to the field of indoor and outdoor fresh air purifying devices. The indoor air replacement and purifying device is internally provided with a plurality of filters comprising the heating carbonization ceramic filter, the bilateral rotation draught fan and the conical ceramic filter; the heating carbonization ceramic filter and the conical ceramic filter are spongy micropore ceramic filters; the upper portion of the heating carbonization ceramic filter inclines towards the outer side; the periphery of the intelligent indoor air replacement and purifying device is provided with an automatic sample connection communicating with the interior of a room; the automatic sample connection is provided with a gas detector; the intelligent indoor air replacement and purifying device is internally provided with an electric current detector and further configured with an intelligent controller; the acquisition cost of an air purifying device, the consumable investment and the installation and maintenance cost can be reduced through the intelligent indoor air replacement and purifying device; the air purifying effect of the intelligent indoor air replacement and purifying device is improved; the device manufacturing cost is reduced; and intelligent operation of the air purifying device is achieved.

The invention discloses engine cylinder body full-automatic vertical electro brush plating equipment with X, Y and Z three-dimensional slide guides to perform accurate positioning, wherein the working procedure and the steps are controlled by a microcomputer procedure. The equipment comprises a 'plating solution providing and recovering system' which automatically injects according to the working procedure and storing in a classifying and recovering way with a solution dividing pan; a 'centered plating head' which is installed on a main spindle box on the Z slide guide, is provided with electrolysis material, and is connected with a sealed chamber; a nonmetal 'insulating platform' with the multifunction of insulating, self-weight multi-position sealing, plating solution collecting and positioning work piece bearing; a cylindrical 'temperature-increasing system' which is hung behind a shield cover for heating cleaning water before and after changing the solution; a 'temperature-reducing system' of a microcomputer and a program control electrical cabinet large-power brush plating electric source; an 'exhausting device' for volatilizing gas of the plating solution; and a 'vertical electro brush plating center' which performs one-off clamp multi-work position electro brush plating repair for worn and broken 'multi-pore workpieces' and can be continuously produced with large power and on a large scale.

The invention discloses an extraction method of a micromolecular sheep placenta extract and application of the micromolecular sheep placenta extract in the field of skin-care products, belonging to the technical field of biology. The extraction method disclosed by the invention comprises the following steps of obtaining a lot of sheep pregnant in the same period by adopting synchronization of estrus, taking out sheep fetus after 85-100 days through an operation method to obtain body homogenate, carrying out repetitive freeze-thawing and splitting cells, degenerating at high temperature, sterilizing, precipitating hybrid protein, carrying out 30 KD ultrafiltration after centrifuging at high speed so as to remove toxic and harmful components and impurities, such as macromolecular hybrid protein, bacteria and endogenous virus, so as to obtain a pure micromolecular sheep placenta extract product, and carrying out ultrafiltration and concentration of the micromolecular sheep placenta extract product by using a 1 KD ultrafiltration component. The micromolecular sheep placenta extract disclosed by the invention can be widely used in the fields of skin-care products, beauty products, wound healing products, health-care products, scientific searches and the like; the extraction method disclosed by the invention provides a novel important way for producing the sheep placenta extract; furthermore, the compositions of the micromolecular sheep placenta extract are authenticated for the first time, and thus, theoretical foundation is provided for scientifically using the sheep placenta extract.

The invention discloses a method for producing a bean pulp feed additive. The method comprises the following steps: inoculating bacillus subtilis (Bacillus subtilis) CGMCC No.7690 into a seed medium and cultivating, so as to prepare a seed solution; inoculating the seed solution into a liquid fermentation medium, and gradually carrying out 10-fold amplified fermentation for 2-4 times, so as to obtain a liquid fermented bacterium solution; inoculating the liquid fermented bacterium solution into sterilized bean pulp; carrying out solid fermentation by virtue of a fermentation bed, controlling the temperature of the fermentation bed at 25-60 DEG C, the throughput at 0.1-10 L/min, and the fermentation time at 24-96 hours; reversing the materials for 1-5 times during fermentation, so as to obtain the bean pulp feed additive. Single-strain liquid-solid combined fermentation is carried out by adopting the bacillus subtilis; in the obtained bean pulp feed additive, the small peptide content and the crude protein content are significantly increased, and anti-nutritional factors are greatly degraded.

The invention belongs to the technical field of electroslag remelting, relates to improvement on a process for producing Inconel 690 alloy electroslag remelted ingot in an industrialized mode, in particular to a process method for producing 1 ton of I-690 alloy electroslag remelting ingot in an industrialized mode. A vacuum induction furnace smelts an electrode bar of phi 240 mm; the size of a crystallizer is phi 340/380*1,500 mm; the remelting process parameters comprise: remelting voltage of 47 to 55 V, current of 7,500 to 8,500 A and slag quantity of 38 to 45 kg; according to the I-690 alloy component requirement, the remelting adopts a new proportioned pentabasic slag system; the components comprise calcium fluoride, calcium oxide, aluminum oxide, magnesium oxide and titanium dioxide; the purity of each component is required to be more than 98.5 percent; the total content of unstable oxide impurities such as manganese oxide, ferrous oxide and silica is less than 0.5 percent; the granularity is less than 50 meshes; before the remelting process, the electrode is roasted at the temperature of 700 DEG C for 8 to 12 hours and the slag is roasted at the temperature of 680 DEG C for 8 to 12 hours for use; and in the remelting process, argon and burning gas are adopted for protection. By the process, the content of the remelted I-690 alloy is reduced to be below 20 ppm, the sulfur content is reduced to be below 5 ppm, oxide inclusion is effectively removed, and high-quality remelted alloy is obtained.

The invention discloses a WMF series sealed wear-resisting load-bearing detection cable comprising a conductor, an insulating layer, a shielding layer, armor layers, and a sheath layer. The cable is characterized in that the armor layers include an inner armor layer and an outer armor layer; the inner armor layer is formed by twisting multiple round steel wires; and the outer armor layer includes multiple steel wire ropes, and each steel wire rope is formed by twisting multiple fine and soft steel wires. Metal instead of a semi-conductive material is used for shielding purpose, so the shielding effect is more thorough, and signal transmission is more stable. The gaps between the steel wires, between the inner armor layer and the outer armor layer and between the cable and a choke tube are filled with sealant or an extrusion sheath, so it is less difficult to put the cable underground, the service life is prolonged, and environmental pollution is reduced greatly. The outer armor layer is composed of multiple strands of wire ropes instead of multiple round steel wires, so the flexibility and tensile strength of the cable are improved greatly.

The invention discloses a preparation method of an artificial bone support with controllable porosity, which comprises the following steps of: establishing a CAD (Computer-Aided Design) model according to the individual characteristics of patients; introducing the model into a three-dimensional printer; analyzing a particle flow software number value computing result according to a disperse number value; and mixing biological ceramic small balls and biological instantly-dissolved small balls according to a certain proportion; and spraying biological adhesive through the three-dimensional printer to adhere the mixed balls so as to prepare the artificial bone support. In order to overcome the defect that in the prior art, during the preparation process, sintering can cause pollution, in the invention, the porosity is obtained by instantly dissolving the instantly-dissolved small balls into the biological dissolved solution, so that the pollution of the sintering and chemical reaction during the preparation process on the artificial bone support can be avoided, and in addition, by controlling the number and the radius of the instantly-dissolved small balls, the biological ceramic artificial bone support with a certain mechanical property and porosity can be obtained.

The invention discloses an intelligent gel coating device for optical fiber cables. The intelligent gel coating device comprises a longitudinal covering rack, a support frame, a gel storage tank, a spraying head mechanism, a microcontroller, an electronic scale and a support mechanism, two X-direction linear rails are fixed on the surface of a base station of the support frame, the spraying head mechanism is mounted on a carrying plate and comprises a gel storage cavity, one end of the gel storage cavity is connected with a first port of a tee joint, a second port and a third port of the tee joint are connected with a gel inlet pipe and a pressure gauge respectively, the other end of the gel storage cavity is connected with a gel spraying nozzle, one support rod and the support mechanism are disposed on two sides of the gel spraying nozzle respectively and below the same, passages for conveying a metal strip are formed between the gel spraying nozzle and the support rod as well as between the spraying nozzle and the support mechanism, a gel supplying pipe is connected to the upper portion of the gel storage tank, an electric valve is mounted on the gel supplying pipe, the microcontroller is connected to a servo motor, the electronic scale and the electric valve, and the servo motor is mounted on a gel delivering pipe. The intelligent gel coating device for the optical fiber cables has the advantages that positions of the gel spraying head and the metal strip can be adjusted conveniently, position accuracy in gel spraying is guaranteed, quantity of gel stored in the gel storage tank can be judged automatically, and gel storage and full automation in gel supply are achieved.

The invention discloses a micro-nano structure zinc oxide-carbon composite pellet and a preparation method thereof. The micro-nano structure zinc oxide-carbon composite pellet is obtained by hybridization compounding of zinc oxide and carbon to obtain a solid pellet having the diameter of 6-12 micrometers, wherein vertical nanosheets having the length of 700-900 nanometers, the height of 700-900 nanometers and the thickness of 15 to 25 nanometers are formed on surfaces of the solid pellet and are connected with each other into a nest; a mole ratio of zinc oxide to carbon is (60-70%): (30-40%); zinc oxide has a hexagonal structure; and carbon comprises amorphous carbon and graphitized carbon and a weight ratio of the amorphous carbon to the graphitized carbon is (85-95%): (5-15%). The preparation method comprises the following steps of dissolving zinc acetate dihydrate, urea, sodium citrate dihydrate and glucose in water to obtain a mixed solution, carrying out hydrothermal treatment on the mixed solution to obtain a reaction solution, orderly carrying out solid-liquid separation, washing and drying to obtain an intermediate product, putting the intermediate product in an inert gas atmosphere, and carrying out annealing to obtain the micro-nano structure zinc oxide-carbon composite pellet. The micro-nano structure zinc oxide-carbon composite pellet can be widely used for fields of catalysis, adsorption and photoelectricity.

The invention discloses a method and a system for recycling catalyst from coal chemical liquid waste. The method comprises the following steps: pretreatment: removing suspended matters out of the coal chemical liquid waste to obtain preliminary filter liquid waste; and ceramic film separation: pumping the preliminary filter liquid waste in a ceramic film separating device for filtering to obtain concentrated solution, and concentrating and drying the obtained concentrated solution to obtain a catalyst. According to the invention, the ceramic film separating device is used for recycling the catalyst from the coal chemical liquid waste, and the ceramic film separating device is used for recycling and filtering the catalyst for multiple times to obtain purified water and recyclable concentrated solution finally; through adoption of the technical scheme, the material loss caused by drainage during the catalyst production process is reduced, the recycled materials are pure and clean, the yield rate during the catalyst production process is improved, and the effects of pollutant emission reduction and environment protection are achieved.

The invention relates to the technical field of medical apparatuses and instruments, in particular to a coaxial pulling-type ampoule opening mechanism which is composed a right half sleeve, a left half sleeve, a sleeve liner, an inner cylinder, a pulling block, a pulling strip, a square hole, a grinding wheel, a plug groove, a plug pin, an elastic piece, a rotating shaft, a shaft cap, an inner cylinder liner, an outer cylinder, protruding rings, limiting grooves, a fixing piece, teeth, a sliding groove and a toothed groove. The cylindrical inner cylinder is located in the outer cylinder and is in clearance fit with the outer cylinder. The annular toothed groove is formed in the outer side wall of the upper end of the inner cylinder. The teeth evenly distributed along the circumference of the inner cylinder are arranged inside the toothed groove. The square hole in the pulling strip is matched with the teeth inside the toothed groove simultaneously. According to the coaxial pulling-type ampoule opening mechanism, a single closed scratch can be etched into the neck of an ampoule bottle only by the simple operation of pulling the pulling strip, operating efficiency is improved, and the purity of liquid medicine and the safety of medical workers are ensured.