51results about How to "Avoid high temperature heating" patented technology

The present invention discloses guide blades of an axial flow fan shroud for guiding the air blown by an axial flow fan in an axial direction, and more particularly, to a guide blade structure capable of preventing the backflow of high temperature heat from an engine room toward a condenser. A guide blade 35 of an axial flow fan shroud 30 comprises: a leading edge 37 for introducing the air blown by an axial flow fan 10 including a number of blades 12; a trailing edge 39 extended from the leading edge 37 to downstream; and an air flow guide surface 38 for guiding the blown air between the leading and trailing edges 37 and 39, wherein if a first outlet area a is defined by at a radius r from a root in the total length R of an angle of projection Aout of the guide blade 35 and a second outlet area b is defined by the remainder, the angle of projection Aout increases as approaching a tip with respect to an axial line in the second outlet area b.

The invention relates to a device and a method for continuous and controllable synthesis of uniform nanocrystalline at normal temperature. The method includes: injecting a prepared lead bromide precursor and Cs precursor into a capillary micro-fluidic chip micro-reactor (5) through a double-channel injection pump (3), mixing the substances uniformly, feeding the mixture into a connecting pipe (4),then putting the connecting pipe into an ultrasonic device (6), and carrying out ultrasonic continuous reaction, thus achieving continuous and controllable synthesis of cesium-lead-bromine perovskiteuniform nanocrystalline directly at normal temperature. The device and method provided by the invention realizes continuous synthesis of cubic-phase cesium-lead-bromine perovskite nanocrystalline with uniform size at normal temperature.

The invention discloses a novel green extraction technology for cordyceps polysaccharide, particularly discloses a method for extracting cordyceps polysaccharide through a two-membrane process. According to the method, the micro-filtration membrane and ultra-filtration membrane treatment and separation are performed on a cordyceps fermentation liquor under specific conditions to obtain the cordyceps polysaccharide. Through the adoption of the method, the traditional extraction mode of water extract and alcohol precipitate of cordyceps polysaccharide is changed, the purification effect of cordyceps polysaccharide is improved, the use level of ethyl alcohol during production is reduced, the economic benefit is increased, meanwhile, the amount of discharged filtrate waste water can be reduced, and the social benefit is obviously improved.

The invention discloses a novel green process for extracting ganoderma lucidum polysaccharides and in particular relates to a method for extracting ganoderma lucidum polysaccharides by a double membrane process. According to the method, ganoderma lucidum polysaccharides are obtained by separating a lucid ganoderma fermentation liquor using a micro-filtration membrane and an ultrafiltration membrane under special conditions. According to the invention, the conventional ganoderma lucidum polysaccharide extraction mode of water extraction and ethanol precipitation is changed, the purification effect of ganoderma lucidum polysaccharides is improved, and the consumption of ethanol during production is reduced, therefore the economic benefit is increased. Besides, with adoption of the method, the emission of filtrate wastewater is reduced and the social benefit is remarkably increased.

A method of forming a relief image on a substrate including: applying over a substrate a layer of an antireflective coating; and vacuum processing the antireflective coating. This method reduces the number of pinhole defects present in the antireflective coating.

The invention discloses a method for extracting trametes versicolor exopolysaccharide through a two-membrane process, which comprises the steps that trametes versicolor fermentation liquor is sequentially subjected to microfiltration and ultrafiltration for separation to obtain trametes versicolor exopolysaccharide. According to the method, the conventional 'water extraction and alcohol precipitation' extraction mode of trametes versicolor exopolysaccharide is changed, the extraction effect of the active ingredients of the trametes versicolor exopolysaccharide is improved, the ethanol usage during the production is lowered, the filtrate wastewater discharge is reduced, and the economic and social benefits are obviously increased.

The invention relates to a melting and stirring system in the building material industry, in particular to a lake asphalt melting and stirring system for treating naturally mined lake asphalt solidified into solid state. The lake asphalt melting and stirring system comprises a heat insulating stirring pot, and also comprises a melting device communicated with the pot body of the heat insulating stirring pot; the melting device comprises a melting bin with a first heating unit and a second heating unit installed on the outer wall; the second heating unit is provided with a gap part for the lake asphalt molten into liquid to flow into the heat insulating stirring pot; and the lake asphalt enters the heat insulating stirring pot after the completion of melting. Both the heat insulating stirring pot and the melting device can be used for continuous production, and intermittent shutdown is avoided, so that the yield is improved, and as only the melting device is subject to high-temperature heating, the temperature of the heat insulating stirring pot keeps low, not all the asphalt is subject to high-temperature heating, and energy consumption is reduced.

The invention discloses a method for extracting grifola frondosa fermentation broth polysaccharide by virtue of a dual-membrane process. According to the method for extracting the grifola frondosa fermentation broth polysaccharide by virtue of the dual-membrane process, the grifola frondosa fermentation broth polysaccharide is obtained by processing and separating grifola frondosa fermentation broth through a micro-filtration membrane and an ultra-filtration membrane under a specific condition. Due to adoption of the method, the traditional 'water-extraction and ethanol-precipitation' extraction mode of grifola frondosa fermentation broth polysaccharide is changed, the purification effect of grifola frondosa fermentation broth polysaccharide is improved, the amount of ethanol in the production is reduced and the economic efficiency is increased; and meanwhile, by adopting the method, the emission of filtrate wastewater can be reduced and social benefits are significantly increased.

The invention relates to a method for preparing sheet structured Cu nano-crystalline and belongs to the technical field of metal nano material synthetic methods. The liquid phase chemical reduction method is adopted and the preparation process comprises the following steps: taking copper sulfate as precursor to prepare copper sulfate solution so as to provide the copper source, adding sodium carbonate powder to increase the solution pH value, adding the complexing agent sodium citrate, adding the additive potassium bromide to adsorb in a directed manner so as to control growth of nano-crystalline, and adding ascorbic acid to stir at the room temperature. The method is simple to operate, realizes preparation of sheet structured Cu nano-crystalline under the room temperature condition and isbeneficial to low-cost preparation; and the adopted additive has water solubility, can be removed through the simple method and is beneficial to keeping the activity of Cu nano-crystalline.

The present invention is to provide a frame for a polymeric pistol with a metal rail, capable of securing the structural soundness of firearms to secure an accuracy rate of bullet even in high-temperature environments, preventing the high-temperature heat generated in a barrel or the like from being transferred, as it is, to a handle of the frame, and disassembling and replacing components as occasion demands.According to an aspect of the invention to achieve the object described above, there is provided a frame for a polymeric pistol with a metal rail, a pistol having a slide, the frame including: a lower frame made of a reinforced plastic material and having a handle formed at its lower portion; and an upper frame assembled onto the lower frame while being assembled to the slide and made of a metal material, wherein: the lower frame includes a first support positioned in front of the handle to support a bottom surface of the upper frame, and a second support positioned behind the handle to support a rear surface of the upper frame; and the upper frame is assembled to the lower frame such that the bottom and rear surfaces of the upper frame are supported by the first and second supports, and the upper frame has a front rail and a rear rail that are integrally formed on its upper surface, the front and rear rails being assembled to the slide.

The invention provides a preparation method of olefin and a method for synthesizing Chondriamide A and Chondriamide C. The preparation method of olefin comprises the steps as follows: a compound withthe structure shown in a formula (I), a palladium catalyst, a phosphorus ligand, alkali and an organic solvent are mixed and react at the normal temperature under light, and olefin with the structureshown in a formula (II) is obtained. Through selection of the specific phosphorus ligand, the method can realize efficient catalytic conversion at the room temperature under the action of photocatalysis, has mild reaction conditions, is simple to operate, meets the requirement for developing green and environment-friendly chemistry, and has more universal substrate selection range and functional group compatibility and excellent chemical selectivity. The method can be successfully applied to a scheme for introducing C-C double bonds in complex molecules and a synthesis strategy for optimizingpart of drug molecules, can improve the synthesis efficiency and reduce the cost and has industrial synthesis value and prospects.

The invention discloses honey colla corii asini walnut kernels and a making method thereof. The honey colla corii asini walnut kernels comprise, by weight, 80-120 parts of walnut kernels, 15-25 parts of honey, 15-25 parts of white sugar, 2-5 parts of vegetable oil and 3-8 parts of colla corii asini pulp. The making method of the honey colla corii asini walnut kernel comprises the steps that 1, the walnut kernels are boiled in water for 3-8 minutes, then frozen quickly at the temperature of 25 DEG C-30 DEG C below zero for 5-10 hours, and then baked at the temperature of 160 DEG C-190 DEG C for 3-8 minutes to obtain the cooked walnut kernels; 2, the honey and the colla corii asini pulp are mixed and heated at the low temperature of 15 DEG C-25 DEG C for 2-4 hours to obtain mixed pulp; 3, the walnut kernels prepared in advance, the mixed pulp, the white sugar and the vegetable oil are mixed, and kept for 10-10 minutes at the temperature of 50 DEG C-70 DEG C to obtain the honey colla corii asini walnut kernels made in advance; 4, the honey colla corii asini walnut kernels made in advance are frozen at the temperature of 25 DEG C-30 DEG C below zero for at least 10 hours to obtain the honey colla corii asini walnut kernels.

The invention relates to sulfur-modified emulsified asphalt and a preparation method thereof. The sulfur-modified emulsified asphalt is prepared from 40 to 50 parts by mass of asphalt, 5 to 20 parts by mass of sulfur, 2 to 10 parts by mass of styrene-butadiene latex, 0.3 to 1 part by mass of a nonionic emulsifier, 0.5 to 3 parts by mass of a cationic composite emulsifier, 0.03 to 2 parts by mass of a stabilizer, 0.5 to 3 parts by mass of an acid and 35 to 50 parts by mass of water. The sulfur-modified emulsified asphalt improves a softening point of the asphalt, improves the high temperature performances of the asphalt, has good low temperature performances, can improve the strength and stability of the asphalt pavement, and improves rutting and fatigue cracking resistance of the pavement. The sulfur-modified emulsified asphalt is prepared through simple processes, is free of heating, prevents generation of harmful gas, reduces the energy consumption and discharge, is beneficial to construction and the health of the construction personnel, and has great economic and social benefits.

The invention relates to a test method for detecting impermeability of mortar. The test method comprises the following steps: putting a cured mortar block to be tested into a standard laboratory for static drying for 0.5h, and uniformly coating the inner wall of an impermeability test mold with mixed sealant, wherein the thickness of the mixed sealant is 1 to 2mm; then, pressing the mortar block into the impermeability test mold with a press to form a mortar test block, extruding colloid from the upper and lower crevices of the mortar test block, and carrying out a coating operation again if crevices occur in the mortar test block; and keeping the bottom surface of the mortar test block into which the mortar block is pressed parallel to the bottom surface of the impermeability test mold, scraping the colloid extruded from the crevices above and below the mortar test block, and carrying out an impermeability test after 2 hours in the laboratory, wherein the mixed sealant is prepared bymixing acetic silicone sealant and fast hardening sulphoaluminate cement in a weight ratio of 2 to 1. Through adoption of the test method, the problem of easy leakage during detection of high pressureintensity is solved; the detection operation process is optimized; and the detection effect and accuracy are improved.

A process for the preparation of entacapone, in particular as the polymorphic form A, comprising the preparation of a compound of formula (V), as herein defined, by condensation of N,N-diethyl-cyano-acetamide with a compound of formula (IV), as herein defined, in the presence of a strong basic agent; the dealkylation of said compound of formula (V) to obtain entacapone and the crystallization thereof to the polymorphic form A.

The invention provides a preparation method of pear syrup special for relieving a cough for children. The preparation method comprises the following steps of cleaning pears, performing peeling, removing pear cores to obtain pear flesh, squeezing the pear flesh to obtain juice, and performing filtering to obtain filter residues and filtrate; and performing extracting on the peel and residues, separately performing vacuum concentration to obtain concentrated pear juice, adding carrageenin, and performing mixing so as to obtain the pear syrup. According to the preparation method disclosed by theinvention, parts high in arbutin content, in pears, are selected as raw materials, and a vacuum concentration method is adopted for preventing long-time high-temperature heating, so that preservationthe arbutin content is facilitated; and a reliable analysis and detection means is used as the auxiliary manner, so that the quality and the health-care effect of products can be guaranteed. In addition, the pear syrup special for relieving a cough for children, provided by the invention, well preserves the fragrance of pears, is moderate in sour and sweet degrees, is suitable for taste of children, and is free from any traditional Chinese medicine components and safe and non-toxic.

The invention relates to the technical field of weapon destroying, in particular to scrapped light weapon destroying equipment. The invention aims to provide the scrapped light weapon destroying equipment which can deprive a scrapped light weapon of properties and radically destroy the scrapped light weapon through heating and rolling treatments to achieve the effect that the scrapped light weapon cannot be assembled and used. The scrapped light weapon destroying equipment comprises a workbench, a heating unit, a rolling unit, a cooling unit and a feeding unit, wherein the heating unit, the rolling unit and the cooling unit are arranged on the workbench in sequence; and the feeding unit is used for connecting the heating unit, the rolling unit and the cooling unit.

The invention discloses a method for producing a soft capsule with activated rana japonica oil by protoplasm separation technology, wherein the method is used for keeping original activity of the rana japonica oil and avoiding high-temperature heating so that the rana japonica oil is safe, green, nutrient and simple. The method includes the steps: (1) placing fresh rana japonica oil into a beater, crushing the fresh rana japonica oil for 5 minutes, screening the fresh rana japonica oil by an 80-mesh screen to filter impurities and placing the obtained rana japonica oil into a vacuum concentration separation tank; (2) settling rana japonica oil protoplasm, separating water for 3-5 hours, concentrating the rana japonica oil protoplasm and leading the water content of the rana japonica oil protoplasm to be lower than 5% to obtain activated pure rana japonica oil protoplasm; (3) preparing 75 parts of pure rana japonica oil protoplasm, 22 parts of pecan oil and 3 parts of natural VE (vitamin E) oil as raw materials; (4) adding the prepared raw materials into an emulsion tank, heating the prepared raw materials into suspension with the temperature of 45-50 DEG C and circulating the prepared raw materials by a colloid mill and a high-pressure homogenizer to obtain activated rana japonica oil emulsion liquid; and (5) placing the activated rana japonica oil emulsion liquid into rubber by a soft capsule making machine and pressing the activated rana japonica oil emulsion liquid to form the soft capsule.

The invention discloses a preparation method of a KTN / PI composite film with high breakdown voltage and low dielectric loss. The preparation method comprises the following steps: firstly, modifying the surface of potassium tantalate niobate (KTN) by using a 3-(2-aminoethylamino)propylmethyldimethoxysilane coupling agent; and then preparing a PI-based composite film precursor through an in-situ polymerization method, carrying out heating at a temperature of 80-330 DEG C, and carrying out thermal imidization to prepare the KTN-NH2 / PI composite film with a mass fraction of 3-11%. Compared with KTN / PI, the breakdown field strength of the KTN-NH2 / PI composite film can reach 242.12 kilovolt / mm, which is 1.49 times of the breakdown field strength of the KTN / PI. When test frequency is 1.0 * 10<5> Hz, the loss tangent value of the KTN-NH2 / PI composite film with a mass fraction of 3% is lower than 0.007.

A kiln including a stove, a housing, an exhaust pipe and a heat source is disclosed. The stove includes a cavity, an entry, and an air outlet. The housing includes a cover and a front plate and disposed outside of the stove, wherein the front plate is joined to a front end of the cover and disposed at a front side of the stove; the front plate and the stove are spaced apart with a gap. The exhaust pipe passes through the cover and communicates with the air outlet and an exterior of the cover. The heat source is adapted to heat the cavity. With the gap between the front plate and the stove, a thermal insulation effect capable of protecting a user from being burned is provided.

The invention provides a preparation method of olefin and a method for synthesizing Chondriamide A and Chondriamide C. The preparation method of olefin comprises the steps as follows: a compound withthe structure shown in a formula (I), a palladium catalyst, a phosphorus ligand, alkali and an organic solvent are mixed and react at the normal temperature under light, and olefin with the structureshown in a formula (II) is obtained. Through selection of the specific phosphorus ligand, the method can realize efficient catalytic conversion at the room temperature under the action of photocatalysis, has mild reaction conditions, is simple to operate, meets the requirement for developing green and environment-friendly chemistry, and has more universal substrate selection range and functional group compatibility and excellent chemical selectivity. The method can be successfully applied to a scheme for introducing C-C double bonds in complex molecules and a synthesis strategy for optimizingpart of drug molecules, can improve the synthesis efficiency and reduce the cost and has industrial synthesis value and prospects.

The invention relates to a test method for detecting the anti-seepage performance of mortar. Put the cured mortar block to be tested into a standard laboratory for static drying treatment for 0.5h, and evenly coat the anti-seepage test mold with a mixed sealant. For the inner wall, the thickness of the mixed sealant is 1-2mm. Then press the mortar block into the anti-seepage test mold with a press to form a mortar test block, so that colloid is extruded from the upper and lower gaps of the mortar test block, and the coating operation is carried out again if there is a gap in the mortar test block. The bottom surface of the mortar test block after being pressed into the mortar block is parallel to the bottom surface of the impermeability test mold, and the colloid extruded from the upper and lower gaps of the mortar test block is scraped off, and the impermeability test is carried out after being placed in the laboratory for 2 hours. The mixed sealant is prepared by uniformly mixing acetate silicone sealant and rapid-hardening sulfoaluminate cement at a weight ratio of 2:1. The invention solves the problem of easy water leakage when detecting high pressure, optimizes the detection operation process, and improves the detection effect and accuracy.

The invention relates to a method for preparing caprolactam with cyclohexanone-oxime, and a device used in the method. The method includes the steps as follows: after being heated, inert supporting gas containing a solvent is continuously put into a supporting gas intake of a first-class reactor of a multi-stage series reactor provided with a catalyst. Cyclohexanone- oxime is directly divided into two parts which then enter all stages of the multi-stage series reactor, thereby ensuring that reaction effluents are cooled. The supporting gas is separated and recycled to the supporting gas intake of the first-class reactor, and then products from a liquid phase reaction are separated and purified.

The invention provides an alternating copolymerization method for preparing a fluoropolymer on the basis of a dibromide compound and a diene monomer. The alternating copolymerization method comprisesthe following steps: (1), adding two types of bifunctional monomers A and B, a metal photocatalyst and a promoter into a mixed organic solvent system, homogenizing the system by stirring in a reactioncontainer, performing deoxidizing operations for four times, and sealing the reaction container; (2), performing a polymerization reaction through photocatalysis; (3), after the reaction, adding tetrahydrofuran to dilute a polymerization system, pouring into methanol for precipitation, performing suction filtration and drying to obtain a needed alternating polymer. A perfluorodiiodide monomer isexpanded to a perfluorodibromide monomer and a common alkane dibromide compound, so that the application range of the monomers for the gradual transfer of free radicals, addition and termination polymerization is further expanded; moreover, the capability of the polymerization method in designing the microstructures of functional high molecular materials is also improved, and more selectivity is provided for obtaining functional polymers with different microstructures.

The invention belongs to the technical field of food processing, and in particular relates to a green banana starch, and also relates to a preparation method and an application of the above-mentioned green banana starch. In the present invention, immature green bananas with skin are directly crushed and ground in a color-protecting solution, then treated with enzyme preparations and extraction solvents, and then screened to remove slag and peeled fibers to obtain coarse starch milk, which is further centrifugally concentrated, washed, and dehydrated. , drying to obtain the final starch product. The present invention can use the defective fruit and malformed fruit in bananas as raw materials for starch production, and at the same time effectively alleviates the rot loss caused by oversupply in peak harvest season and lagging storage and preservation conditions, and improves resource utilization and product added value; And in the process of preparing green banana starch, avoid high-temperature heating, prevent starch granules from swelling and collapsing, and protect starch structure from damage, and the obtained green banana starch is rich in amylopectin, and will not agglomerate during storage. Has unique tackifying and gelling properties.

The invention discloses a method for extracting trametes versicolor exopolysaccharide through a two-membrane process, which comprises the steps that trametes versicolor fermentation liquor is sequentially subjected to microfiltration and ultrafiltration for separation to obtain trametes versicolor exopolysaccharide. According to the method, the conventional 'water extraction and alcohol precipitation' extraction mode of trametes versicolor exopolysaccharide is changed, the extraction effect of the active ingredients of the trametes versicolor exopolysaccharide is improved, the ethanol usage during the production is lowered, the filtrate wastewater discharge is reduced, and the economic and social benefits are obviously increased.

The invention provides choerospondias axillaris peel nutritional jelly drops enriched with polyphenol and a preparation method thereof. The choerospondias axillaris peel nutritional jelly drops are composed of 10.5%-15.5% of choerospondias axillaris peels, 30%-40% of white granulated sugar, 20%-30% of glucose syrup, 7%-12% of edible gelatin, 6%-9.5% of sweet potato starch, 1.0%-3.0% of semen plantaginis glue and 1.0%-3.0% of ficus pumila seed glue. The choerospondias axillaris peel nutritional jelly drops take the choerospondias axillaris peels as main raw materials; the choerospondias axillaris peels are crushed by a wet method and is treated by pectinase to prepare choerospondias axillaris juice; the choerospondias axillaris juice and the gelatin are sufficiently dissolved and expanded and are added into boiled liquid glucose; a mixture is uniformly mixed, cooled and chopped. The choerospondias axillaris peels are treated by the pectinase to release abundant polyphenol substances in the choerospondias axillaris peels and an outer source, namely a polyphenol extract, does not need to be added. The jelly drops prepared by the process have a unique mouth feel and are enriched with abundant phenols compounds and dietary fibers; food additives including citric acid, malic acid, essence and the like do not need to be added so that the choerospondias axillaris peel nutritional jelly drops have the advantages of being green and natural, having the unique mouth feel, and being nutritional and healthy and the like.

The invention provides a method for preparing miniaturized amber cork patchworks. According to the method, an adhesive-dripping technology is adopted, miniaturization is performed on cork patchworks with large volumes, and dropped adhesives are injected into the miniaturized cork patchworks, so that inlay skills of the cork patchworks are innovated; prepared miniaturized amber cork patchwork products have beautiful appearance and practicability, and the space is also shrunk; and the risks of bumping and damage of the cork patchworks in a transportation process are prevented, the making cost ofcork patchwork products is reduced, and a significant role is played for the popularization of the cork patchworks.

The invention discloses honey colla corii asini walnut kernels and a making method thereof. The honey colla corii asini walnut kernels comprise, by weight, 80-120 parts of walnut kernels, 15-25 parts of honey, 15-25 parts of white sugar, 2-5 parts of vegetable oil and 3-8 parts of colla corii asini pulp. The making method of the honey colla corii asini walnut kernel comprises the steps that 1, the walnut kernels are boiled in water for 3-8 minutes, then frozen quickly at the temperature of 25 DEG C-30 DEG C below zero for 5-10 hours, and then baked at the temperature of 160 DEG C-190 DEG C for 3-8 minutes to obtain the cooked walnut kernels; 2, the honey and the colla corii asini pulp are mixed and heated at the low temperature of 15 DEG C-25 DEG C for 2-4 hours to obtain mixed pulp; 3, the walnut kernels prepared in advance, the mixed pulp, the white sugar and the vegetable oil are mixed, and kept for 10-10 minutes at the temperature of 50 DEG C-70 DEG C to obtain the honey colla corii asini walnut kernels made in advance; 4, the honey colla corii asini walnut kernels made in advance are frozen at the temperature of 25 DEG C-30 DEG C below zero for at least 10 hours to obtain the honey colla corii asini walnut kernels.