203results about How to "Continuous industrial production" patented technology

The present invention relates to a production method of microwave vacuum freeze-dried lemon slices. Said method includes the following steps: (1), sorting lemon fruit; (2), storing lemon fruit under the condition of constant temperature; (3), utilizing ozone to degrade pesticide residue on the lemon fruit and make sterilization; (4), cutting head and tail of lemon fruit, cleaning the lemon fruit by using ozone water and sterilizing; (5), slicing; (6), freezing sliced lemon; (7), prefreeze-drying; (8), microwave vacuum-drying; and (9), sealing and packaging so as to obtain the invented product.

The invention relates to an elastomer plastic which is characterized by being blended from single thermoplastic resins with at least two different specifications. The invention also relates to a conductive plastic containing the elastomer plastic and a conductive plastic bipolar plate. The invention also relates to preparation methods of the elastomer plastic, the conductive plastic containing the elastomer plastic, and the conductive plastic bipolar plate.

The invention discloses a preparation method of nano Pt-Al coating, which comprises the following steps: first, a high-temperature alloy matrix receives surface treatment; second, a layer of about 0.5 micrometer to 10 micrometer thick pure platinum is plated on the cleaned alloy surface; finally, powder embedding aluminizing is conducted under a certain temperature, to obtain the nano Pt-Al coating. The surface of the coating is compact, can be highly adhered to the matrix, can be widely applied to all high-temperature alloys, in particular the nickel-based high-temperature alloy, can effectively improve the service life of the high-temperature alloys, so that the alloys have excellent cold and hot impact resistant capability as well as oxidation resistant capability at high temperature.

The invention discloses a lithium ion battery cathode material with a variable slope concentration gradient doping structure and a synthesis method thereof. For solving the problems of capacity fadingand rate performance degradation which are brought by the conventional doping method, an element with a variable slope concentration gradient structure is doped, thereby obtaining the lithium ion battery cathode material with the concentration of a doping element continuously changed from the center of a material particle to the surface of the material particle; and change rate is gradually increased from inside to outside, so that the concentration of the doped element inside the material is slowly changed, the concentration of the doped element on the surface of the material is rapidly changed, and change of the concentration of the doped element is mainly concentrated on a surface layer. The method improves stability of the internal structure and the surface of the material while sideeffect is not introduced, the problems such as phase change of the material, volume change and dissolution of transition metal elements in a charge-discharge cycle process are reduced, cycle life of the material is greatly prolonged, and safety performance of the material is greatly improved.

The invention discloses a method for continuously refining L-lactide from crude L-lactide, which comprises the following steps of: firstly, performing at least once lightness removal to the crude L-lactide by using a lightness-removing column, sending melted crude L-lactide into the middle of the lightness-removing column, refluxing and separating as well as distilling the crude L-lactide in the lightness-removing column, condensing vapor distillate at the upper end of the lightness-removing column for removing water, L-lactate and meso-lactide; secondly, enabling column bottom liquid to enter a reboiler for vaporization and then enter into the column, performing at least once rectification to the left column bottom liquid through a treating column after cooling, wherein the lower end of the lightness-removing column mainly has high-boiling point distillate liquid comprising the L-lactide and lactate oligomer; and when in rectification, refluxing and separating the column bottom liquid of the lightness-removing column to obtain a refined L-lactide; refining column bottom flow to obtain concentrated lactate oligomer. The L-lactide purified by the method can be directly used in the polymerization of poly L-lactate, thereby lowering the purifying cost of the L-lactide, increasing the yield, and being environmental friendly without organic solvents.

The invention discloses a preparation method of a long-fiber reinforced polypropylene microcellular foam material. The method includes the following steps of adding 45-80 parts of raw material into an extruder, wherein the raw material is polypropylene resin; adding 10-45 parts of long fiber and 2-12 parts of supercritical fluid into the middle section of the extruder respectively to be sufficiently mixed to obtain a melt mixture; making the melt mixture pass through a die head of the extruder to be subjected to depressurization foaming to obtain the long-fiber reinforced polypropylene microcellular foam material, wherein the extruder is formed by connecting a twin-screw extruder with a single-screw extruder in series, the temperature of the first region of the single-screw extruder is 120-140 DEG C, the temperature of the die head is 150-175 DEG C, and the pressure of melt in the die head is 6-20 MPa. Compared with a material where fiber is not added or ordinary short-cut fiber is added, the strength and modulus of the long-fiber reinforced polypropylene microcellular foam material can be remarkably improved; the material is formed, extruded and prepared through one step, continuous industrial production can be achieved, and production efficiency is greatly improved. The material is safe, free of toxin, green and environmentally friendly.

The invention discloses a crystallization apparatus for refining and purifying ethylene carbonate and a purification method with its application. Specifically the ethylene carbonate obtained through the rectification and purification processes is transported into a crystallizer to be crystallized by a stepwise cooling method. Through step-by-step heating and melting processes, the ethylene carbonate of over 99.99% purity is obtained. The invention introduces a continuous industrial production, which solves the problems such as high energy consumption, high cost and unmanageable quality controlin preparing high-purity ethylene carbonate in the prior art. By comparison, the obtained product has the advantages of high purity, high yield, stable quality and low cost. In addition, the invention has the advantages of simple processes, convenient operation, easy control, low energy consumption, less equipment investment, low operation cost, stable and reliable operation, high safety, considerable economic benefit and suitability for mass production.

The invention provides a chemical fiber containing organ-metallic catalyst. The weight ratio of the organ-metallic catalyst and the macromolecular compound which is nitrile, cellulose fiber, is (0.5-8): (92-99.5). The organ-metallic catalyst is the organic compound of the Fe, cobalt or manganese. a) phthalocyanine Fe, cobalt or manganese; b) porphyrin Fe, cobalt or manganese; c)porphin Fe, cobalt or manganese. The organ-metallic catalyst is dissolved in the spinning slurry, so to get the fibre by the wet spinning technology. The fiber is deodorant.

The invention discloses a preparation method of a fully degradable high-strength and high-barrier polylactic acid film. The method is to firstly melt and blend polylactic acid and PBS under strong shear, so that the PBS droplets are violently broken into nanoparticles in the matrix. The strong tensile/shear field transforms PBS nanoparticles into nanofibers, and finally uses the "confined sheet" method to transform PBS nanofibers into regular and dense PBS nanosheets in a molding machine or a twin-roller continuous extrusion molding device, A polylactic acid high-strength and high-barrier film containing PBS nanosheets was obtained. The polylactic acid film products containing PBS nanosheets prepared by the present invention retain the good biodegradability of PBS and polylactic acid on the one hand, and on the other hand, a large number of oriented and straightened PBS nanosheets can block the infiltration of gas/water molecules and act as self-reinforcement The structural unit obtains simultaneous improvement of mechanical properties and barrier properties.

The invention discloses an electrostatic spinning submicron fiber and sliver composite blended yarn preparation device and method. The preparation device comprises a drawing frame and an electrostaticspinning device, the electrostatic spinning device comprises needle-free electrostatic spinning spray heads located on the two sides of a sliver respectively and a receiving pole plate, and the needle-free electrostatic spinning spray heads are connected with a high voltage generator; a liquid storage bottle is communicated with the needle-free electrostatic spinning spray heads. The preparationmethod comprises the steps that a control valve and a liquid supply pump are opened, and a spinning solution in the liquid storage bottle flows into the needle-free electrostatic spinning spray heads;the drawing frame is started, the high voltage generator is connected with the needle-free electrostatic spinning spray heads, the high voltage generator is started, multiple jet flows are sprayed out from the needle-free electrostatic spinning spray heads, in the process that the jet flows fly to the receiving pole plate, solvent is volatilized, high polymer is stretched and cured, and submicronfibers are formed and deposited on the sliver. Accordingly, blending of electrostatic spinning submicron fibers and fibers for traditional textile can be achieved, and the functional characteristicsof the submicron fibers are applied to the traditional textile.

The invention belongs to the technical field of microorganisms, and relates to a method for producing inonotus obliquus exopolysaccharides through submerged fermentation, particularly to a method for industrial-scale production of the inonotus obliquus exopolysaccharides. The method comprises the steps as follows: activated inonotus obliquus strains are inoculated into a seed tank for propagation, then propagated liquid seeds are inoculated into a specially-made polysaccharide-producing liquid culture medium for fermentation, and a fermentation liquid is separated to extract the exopolysaccharides. According to the method, research is conducted to overcome defects in the prior art, on the premises that a fermentation culture medium (especially a carbon source) is continuously optimized through small and medium tests and the biomass and the exopolysaccharides are increased, the problems of fermentation process parameter control, extracting equipment model selection, optimization and the like in the process of enlargement from the small tests to industrial production are solved, the strains are successfully inoculated into fermentation tanks of 10-20 t finally for industrial production, the high-quality inonotus obliquus polysaccharides are produced smoothly, and the continuous, automatic and industrial production is actually realized.

The invention discloses bean curd and a bean curd production method. The bean curd production method comprises the following steps: preparing soybean milk; and mixing the soybean milk with a coagulant, coagulating to obtain bean curd. The preparation of the soybean milk comprises 1) adopting soybean cotyledon particles to serve as a raw material after breaking, embryo removal and soybean skin removal; 2) grinding after soaking the soybean cotyledon particles in water for 30-60 minutes, removing bean dregs after grinding so as to obtain raw soybean milk, and enabling the weight ratio between the cotyledon particles and water for soaking the cotyledon particles to be 1:6-11 during soaking; and 3) boiling the raw soybean milk, maintaining the temperature at over 85 DEG C for 30-45 minutes toobtain the soybean milk. The bean curd production method is scientific and simple, overcomes various shortcomings in the prior art, enables coagulating process of the soybean milk to be effectively adjusted, is favorable for achieving industrialized production of bean curd, and has the advantages of saving energy, simplifying equipment and reducing sewage discharge. Besides, the quality of the produced bean curd is equal to or close to that of northern bean curd.

The invention relates to a household waste incineration fly ash cyclic utilization method. A flow distributing device is installed at the lower end of a dust remover of a waste incineration smoke treatment system and controls the amount of fly ash circularly entering a non-medium grinding machine, and therefore the phenomenon that since the fly ash agglomerates at a grinding medium or adheres to the inner wall of the grinding machine, the grinding effect is influenced is avoided. After the fly ash is smashed in a grinding bin, a high-pressure centrifugal fan brings the grinded powder materialsinto a powder selecting machine, fine powder meeting the fineness requirement enters a circulatory system along with airflow, and coarse particle materials incapable of meeting the fineness requirement return to the grinding bin to continue to be grinded. It is guaranteed that the particle sizes of the grinded fine powder are uniform and kept within a certain range, unreacted calcium hydroxide isfully exposed, the specific surface area of the fly ash is increased, the utilization rate of the calcium hydroxide in the fly ash can be improved to be 80% or over, and continuous industrial production can be achieved. Meanwhile, phosphate is fed into the non-medium grinding machine so as to pre-stabilize heavy metal and reduce the application amount of follow-up deacidification agents, and thephosphate also has the grinding assistance function. A strong oxidant is added and achieves the desulfurization and denitration function and the function of promoting dioxin to decompose.

The invention relates to white carbon black with dyeing groups on the surface and a preparation method of the white carbon black. In a formula I, R represents reactive groups of a silane coupling agent, and Dye represents the dyeing groups. The dye modified white carbon black prepared with the method has wide raw material sources and is lower in cost, part of monomers is the industrialized raw material, and a reaction method is mature. Compared with non-modified white carbon black, the dye modified white carbon black prepared with the method has high hydrophobic and lipophilic properties, and can improve combining property with reinforced rubber and improve reinforcement effect; meanwhile, the white carbon black has different colors and can endow the reinforced rubber with different colors, and besides, transference resistance of the dye is better; an obtained copolymer has broad application prospect in the aspect of improvement of flame retardancy and bonding flame retardancy of polyolefin.