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43results about How to "The amount added is controllable" patented technology

Microbial fermented composite antibiotic-free feed containing natural antibacterial components

The present invention provides a microbial fermented composite antibiotic-free feed containing natural antibacterial components. The feed comprises a fermented product based on the united segmented fermentation of aerobic-anaerobic composite strains, composite natural antibacterial components, a non-plant source protein/polypeptide compound nutrient supplement agent, and an additive comprising atleast a soybean protein amino acid/polypeptide compound chelate. The composite strains comprises at least lactic acid bacteria, bacillus subtilis, yeast selected from candida utilis or saccharomyces cerevisiae, and enterococcus faecalis. The fermented product based on the united segmented fermentation is prepared by carrying out secondary fermentation on fermentation raw materials through the aerobic-anaerobic composite strains. The combination of the microbial fermented feed and the natural antibacterial components is beneficial to the balance of intestinal flora of animals, and can prevent the dysbacteriosis of digestive tracts, improve the immunity functions of animal organisms, reduce or replace the use of feed antibiotics, and significantly improve the digestion and absorption efficiency of the feed and the meat quality of animals.
Owner:JILIN QIAN KE LAI FEED TECH

Granule-adding method and device for granule-containing liquid drink processing technique

The invention provides a method and a device for adding granules in the process of inclusion granule liquid drink. The technical scheme of the device is mainly achieved as follows: a feeding pipe is arranged in a compensating groove, the wall of the feeding pipe is provided with holes, the bottom end of the feeding pipe contacts with the bottom surface of the compensating groove in a sealing way so as to enable feed liquid to be added with granules to enter into the feeding pipe from the holes on the wall of the feeding pipe after entering into the compensating groove, granular materials enter into the feeding pipe from the upper port of the feeding pipe, the feed liquid to be added with granules are mixed with the granular materials in the feeding pipe to form inclusion granule mixed materials which are led out of a mixed material outlet arranged on the bottom surface of the compensating groove corresponding to the bottom end surface of the feeding pipe from the compensating groove so that the granular materials are uniformly added into the feed liquid on line. The invention also provides a method for producing the inclusion granule liquid drink by the method and the device for adding granules.
Owner:INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD

Preparation method for low-silicon, high-calcium and large-crystal fused magnesia

The invention discloses a preparation method for low-silicon, high-calcium and large-crystal fused magnesia. The preparation method comprises the following two steps: preparation of high-activity MgOand smelting with an electric arc furnace, i.e., during preparation of high-activity magnesium oxide powder, adding a sodium carbonate solution with a concentration of 3 to 8%, then adding high-puritygraphite powder into the prepared high-activity magnesium oxide powder as a reducing agent, carrying out balling with a device, after balling is completed, carrying out smelting with a fully-automatic electric arc furnace, carrying out cooling and crystallizing, and carrying out crushing and picking so as to obtain a finished product. According to the invention, through addition of the sodium carbonate solution, the point of melting is effectively reduced; the temperature of calcination is reduced; and energy is saved. Meanwhile, through a reaction between sodium carbonate with silicon dioxide impurities, sodium silicate and carbon dioxide can be generated; the silicon dioxide impurities in magnesite can be effectively removed; and the content of magnesium oxide is improved. The low-silicon, high-calcium and large-crystal fused magnesia provided by the invention reaches an MgO content of 99.90% or above, achieves a calcium-to-silicon ratio of 2.30 or above, has good high-temperature fire resistance and high-temperature scouring resistance, and can be used as a high-quality advanced refractory material to be applied in the industries of aerospace, electronics, steel and iron, metallurgy, etc.
Owner:LIAONING XINFAZHAN REFRACTORY MATERIAL GRP

Vanadiferous magnesium intermediate alloy grain refiner and preparation method and application thereof

The invention discloses a vanadiferous magnesium intermediate alloy grain refiner and a preparation method and application thereof. The grain refiner comprises, by mass, 90-99% of magnesium and the balance vanadium compound which is composed of at least one of VC, VN, VC<x>N<1-x>, and in VC<x>N<1-x>, x is larger than 0 and less than 1. The invention further discloses the preparation method of the vanadiferous magnesium intermediate alloy grain refiner. According to the vanadiferous magnesium intermediate alloy grain refiner, the vanadium compound can be used as an effective heterogeneous nucleation core of magnesium alloy and prepared into magnesium intermediate alloy, the adding amount is easier to control, using is convenient, the yield is high, and limiting of the content of the magnesium alloy is avoided (the grain refiner can be added into both magnesium alloy containing Al and magnesium alloy free of Al); and after the grain refiner is added into the magnesium alloy, the grain of the magnesium alloy is effectively refined, magnesium and the magnesium alloy are strengthened, and the comprehensive mechanical property of the magnesium alloy is improved.
Owner:CHONGQING UNIV OF ARTS & SCI

Composite Holographic Optical Diffuser Structure with High Frequency Overlay and Method of Fabrication Thereof

The optical diffuser mastering of the subject invention includes legacy microstructure surface relief patterns, along with smaller ones, overlaid on the larger ones. The characteristic features produced by the present invention will be found useful to eliminate visible structures in / on optical diffusers, such as those used in movie projection screens (utilizing either coherent (i.e., laser-generated) and non-coherent (e.g., lamp-generated) light), head-up displays (HUDs), laser projection viewing, etc., as the present invention produces much sharper images than those afforded by traditional holographic optical diffusers.
Owner:LUMINIT

Preparation method of low-silicon high-calcium macrocrystalline fused magnesite

The invention discloses a preparation method of a low-silicon high-calcium macrocrystalline fused magnesite. The preparation method comprises the following steps: putting magnesite with the MgO content of over 45% into a light roasting furnace for continuous calcinations for 4 h, uniformly adding an Na2CO3 solution during calcinations, and smashing a product after calcinations to obtain a high-activity MgO powder; adding the high-purity graphite powder into the high-activity MgO powder, putting the mixture into a full-automatic electric smelting electric-arc furnace for smelting for 5 to 8 h,and carrying out classification crushing after the smelting is ended so as to obtain the low-silicon high-calcium macrocrystalline fused magnesite. According to the preparation method, a sodium carbonate solution is added, so that the melting point is effectively reduced, the calcination temperature is reduced, and the energy is saved; moreover, sodium silicate and carbon dioxide can be generatedthrough the reaction of sodium carbonate and impurity silicon dioxide, and the silicon dioxide impurity inside the magnesite can be effectively removed, so that the content of magnesium oxide is improved; the content of MgO inside the product reaches 99.90% or more than 99.90%, the calcium-silicate ratio reaches 2.30 or more, the fused magnesite has high high-temperature fire resistance and high-temperature scouring resistance, and the fused magnesite can be applied to the industries such as spaceflight, electrons, steel, metallurgy and the like as a high-quality advanced refractory material.
Owner:LIAONING XINFAZHAN REFRACTORY MATERIAL GRP

Quick crystallization method for realizing amorphous silicon nitride powder by taking silica powder as additive

ActiveCN102060544AFacilitate the phase transition processShorten crystallization timeSilica fumeNitrogen gas
The invention discloses a quick crystallization method for realizing amorphous silicon nitride powder by taking silica powder as additive, belonging to the technical field of preparation of ultrafine silicon nitride powder. The quick crystallization method is characterized in that the amorphous silicon nitride powder and silicon powder serving as the additive are fully mixed at the weight ratio of (98-50):(2-50); then the mixture is put into a high-temperature nitrogen furnace after being screened and dried for crystallizing the amorphous silicon nitride powder; the silicon powder is added to be subjected to combustion synthesis reaction together with nitrogen to generate alpha-phase silicon nitride while the crystallization time for the amorphous silicon nitride is effectively shortened; the final product is the alpha-phase silicon nitride powder, and the content of the silicon in the product is below 0.1%. The silicon powder serving as the crystallization can effectively accelerate the crystallization process of the amorphous silicon nitride powder, thus the nitriding of the nitrogen powder is completed while the crystallization time is greatly shortened. The method has the advantages of high production efficiency, simple equipment, quick energy conservation and high product purity, is convenient to operate, and is especially suitable for producing the high-quality silicon nitride powder with high alpha-phase content on batch by utilizing the amorphous silicon nitride powder.
Owner:UNIV OF SCI & TECH BEIJING

Ultraviolet radiation resistant composite insulator material added with nano particles and preparation method thereof

InactiveCN109762338ADoes not affect hydrophobicityThe amount added is controllableComposite insulatorsNano sio2
The invention relates to an ultraviolet radiation resistant composite insulator material added with nano particles and a preparation method thereof. According to the preparation method, silicon rubberis taken as a unit, and<x>g is taken, 20<x>% nano SiO2 is taken, 5<x>% of hexamethyldisilazane is taken, 10<x>%-40<x>% nano TiO2 is taken, and 1<x>% of 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane istaken; a twin-roller machine is started, and after the temperature reaches 30 EDG C, the silicone rubber is placed in the middle of two rollers for mixing; after homogenization, nano SiO2 is added into silicone rubber evenly, and then the mixture is mixed by two rollers; at the same time, the hexamethyldisilazane is added three times; after all the additives are added, twin-roller mixing is carried out, nano TiO2 is uniformly added, and after the additives are added, twin-roll mixing is carried out to obtain a mixed material; the 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane is uniformly droppedon the mixed material, twin-roller mixing is carried out, a sample is shoveled, the sample is rolled into a croissant shape, the sample is placed between the rollers for mixing again, the sample is taken down, and the sample is placed between two clean PET films; and the sample is vulcanized at high temperature by using a tablet press. The addition of the nano TiO2 does not affect the hydrophobicity of the composite insulator material.
Owner:国网西藏电力有限公司

Glass fiber group and manufacturing method thereof, and glass fiber reinforced resin-based composite material and manufacturing method thereof

The invention discloses a glass fiber group and a manufacturing method thereof, and a glass fiber reinforced resin-based composite material and a manufacturing method thereof. The manufacturing method of the glass fiber group is characterized by comprising the following steps: producing glass fibers by using a centrifugal method, and carrying out a wet-process molding or dry-process molding process on the glass fibers to obtain the glass fiber group with a predetermined shape. According to the invention, since the glass fibers are manufactured by adopting a centrifugal method, glass residues and powdery glass can be obviously reduced through a wet molding process, and the non-fibrosis phenomenon in the composite material is reduced, so that the added glass material can achieve the effect of enhancing the resin performance. The retention length of the glass fibers in the glass fiber reinforced resin-based composite material is larger, the content of the glass fibers is stable and controllable, and the glass fibers are uniformly dispersed. The mechanical strength and the performance of the glass fiber reinforced resin-based composite material are improved, and the glass fiber reinforced resin-based composite material is more stable.
Owner:袁飞 +1

Modified polytetrafluoroethylene (PTFE) and preparation method and application thereof

The invention relates to a modified polytetrafluoroethylene (PTFE) and a preparation method and an application thereof. All or parts of the PTFE particles are prepared by being coated with polymer or copolymer by an emulsion polymerization method and the weight percent of polymer or copolymer is 40%-60% of the modified PTFE. The preparation method comprises the following steps: adding electrolytemother solution in a reaction kettle; adding mixed monomers of styrene and acrylonitrile with initiator and PTFE emulsion in the reaction kettle while stirring, heating the mixture to 60-65 DEG C to perform polymerization reaction for 2-8h while stirring, then adding crylic acid monomer which accounts for 5% of the weight of the obtained polymer, heating the mixture to 60-70 DEG C for 40-60min toform new copolymer, centrifuging and filtrating the copolymer, drying until the moisture content is smaller than 0.5% and obtaining the desired product; wherein, the solid content of PTFE emulsion is40-70%, the particle size is 0.05mu m-20mu m, and the weight ratio of the electrolyte mother solution, initiator, mixed monomers of styrene and acrylonitrile and the PTFE emulsion is 4:(0.1-4):(30-45):(50-70). The modified PTFE can be used in anti-dripping agent and the like. The modified PTFE prepared by the invention has convenient storage, good dispersity, and controllable additive amount.
Owner:SHANGHAI ENTROPY CHEM

Quantitative salt pot

A quantitative salt pot comprises a pot body and a grip. A partition plate is arranged in the kettle body, and a conical through hole is formed in the middle of the partition plate. A first sliding plate is arranged on the upper side of the partition plate, a first through hole is formed in the position, corresponding to the conical through hole, of the first sliding plate, and the right side of the first sliding plate penetrates out of the kettle body through a first push-pull rod. A second sliding plate is arranged on the lower side of the partition plate, a second through hole is formed in the left side, corresponding to the conical through hole, of the second sliding plate, and the right side of the second sliding plate penetrates out of the kettle body through the right side of a second push-pull rod. A connecting plate is arranged on the right side of the kettle body, and the first push-pull rod and the second push-pull rod are connected with the connecting plate. The grip comprises a vertical part and two horizontal parts, a sleeve is arranged on the right side of the connecting plate, a cylinder is arranged on the vertical part, the left part of the cylinder extends into the sleeve, and a self-rebounding device in the left-right direction is arranged between the right side of the sleeve and the vertical part. According to the salt pot, quantitative salt can be added every time, the adding amount is easy to control, errors are extremely small, and use is convenient.
Owner:李天勇
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