332results about How to "Scientific and reasonable process" patented technology

A process technology using enzymolysis method to extract leftover fish oil from fish processing comprises the following steps: preliminary treatment, in which the leftovers from the fish processing are cleaned and minced; protease hydrolysis, in which neutral protease and papain are hydrolyzed simultaneously; oil-water separation, in which hydrolysate is centrifugally filtered to remove residues, and filtrate undergoes oil-water separation via a centrifuge, thereby obtaining the fish oil and hydrolyzed protein; and fish oil refinement, in which refined fish oil can be obtained after the fish oil is degummed, depickled, decolored and deodorized. The leftovers from the fish processing can be hydrolyzed with the proteases to destroy the associative relation of protein and fat, thereby releasing axunge which undergoes oil-water separation by the tubular centrifuge to obtain the fish oil with high quality, and meanwhile, the protein therein can be fully utilized to produce hydrolyzed protein, so as to change wastes into valuables and synthetically and efficiently utilize the resources of the fish and the processing leftovers.

The present invention discloses a hot and spicy sauce and a preparation method thereof, and belongs to the field of food seasoning technology. The preparation method comprises the following main steps: preparing each raw material according to characteristics of the raw materials, heating siritch to 180-200 DEG C, adding ginger and garlic into the siritch, sauting the ginger and garlic until fragrant, adding thick broad-bean sauce into the mixture, maintaining product temperature at about 95 DEG C and stir-frying the mixture for 3-6 minutes, frying the mixture with pepper, shii-take and chilli paste, edible fungus and diced tofu for about 10 minutes, adding inspissated juice of Chinese wolfberry, red date and apple, spice material and soy sauce into the mixture, frying the mixture for additional 5 minutes at a product temperature of about 95 DEG C, adding salt, edible fungus powder, crushed peanut and sesame, continuing frying the mixture for 5 minutes, adding zanthorylum oil, stopping the fire, and maintaining product temperature at above 65 DEG C for hot filling. The hot and spicy sauce prepared in accordance with the above-mentioned preparation method is rich in nutrition, beautiful, ruddy and shiny in color, rich in gloss, salty and spicy and natural in taste, harmonious in fragrance, and crispy and chewy in taste.

The invention belongs to the technical field of tree protection and relates to a protective restoring method for damaged trees. The protective restoring method includes steps of A, cutting withered branches; B, splitting damaged parts of the branches; C, restoring damaged parts of trunk barks; D, supporting a tree; E, restoring tree posture; F, preventing and curing pests and diseases and watering and fertilizing. The protective restoring method for damaged trees is wide in application range from restoration of mechanical damages of trunks and branches to restoration of endogenous damages caused by pests and diseases, is simple to operate as application tools are common and operation processes of removal of impurities, sterilization and disinfection, coating of restoration agent and protective agent and the like are firstly performed after damaged parts are located, is scientific and reasonable in processes and remarkable in restoration effect. The protective restoring method has good application prospect in the technical field of tree protection.

The invention relates to Muslim spicy sauce and a preparation method thereof, belonging to the technical field of food seasonings. The Muslim spicy sauce is prepared from the following raw materials in parts by weight: 30-300 parts of fresh chili sauce, 30-100 parts of edible vegetable oil, 10-100 parts of thick broad-bean sauce, 5-50 parts of capsicum frutescens, 10-50 parts of diced tofu, 10-20 parts of edible mushrooms, 1-10 parts of wolfberry concentrated juice, 2-5 parts of red date concentrated juice, 2-40 parts of soybean sauce, 5-50 parts of fresh gingers, 3-50 parts of garlic, 2-5 parts of table salt, 0.2-5 parts of spices and 1-3 parts of edible mushroom powder. The Muslim spicy sauce has the characteristics of fine material selection and rigorous and scientific formula; the requirements in all the aspects of nutrition, taste, color and the luster and the like are considered, and the process is scientific and reasonable; and the aromas of a lentinus edodes aroma, a chili sauce aroma, a spice aroma and the like are harmonious, and the Muslim spicy sauce crispy in taste and chewy.

The invention discloses a production process for separating and recycling paper-plastic composites, which relates to the production process for separating and recycling the paper-plastic composites and is characterized by comprising the steps of: crushing the paper-plastic composite materials by a crusher, hydrothermally degrading the composite materials in a soaking and cleaning tank, removing paper by a paper removing machine so as to separate paper from plastic, mixing the separated paper with water to obtain pulp, filtering and dehydrating the pulp to obtain finished pulp, and preparing the separated plastic into plastic products by a plastic extruding machine. The production process has the following benefits: 1. the process is scientific and reasonable, the paper-plastic composites can be separated and recycled without adding any chemical material or heating, therefore, the process saves time and labor and is safe and efficient; 2. the paper-plastic composites can be separated thoroughly with the recycle rate, paper and plastic can be totally separated and recycled, and the economic benefit is good; 3. water can be recycled completely, and precious water resources can be saved; and 4. the process does not pollute environment.

The bee venom refining process includes the following steps: dissolving coarse bee venom in alcohol to form suspension, filtering to eliminate propolis, honey and other impurity, centrifuging the filtrate and eliminating liquid phase, dewatering the precipitate with anhydrous alcohol, leaching the precipitate in water at 10+ / -2 deg.c for 12-15 hr, precipitating the leached liquid with alcohol, eliminating water solution of alcohol, extracting the precipitate in ammonium hydroxide and n-butanol solution, distilling the extracted liquid, concentrating and freeze drying to obtain refined bee venom. The refined bee venom may be used in different clinical research and application fields, including preparing electrophoresis level melittin.

The invention discloses a digital teaching material management system based on an intelligent classroom teaching system. The digital teaching material management system comprises an intelligent ventilation system, an intelligent door / window system, a high fidelity audio system, an intelligent air-conditioning system, a cloud monitoring camera, a projector, a hoisting microphone, an intelligent lighting system, an intelligent safe-guard system, an electronic classroom brand, an intelligent platform system, a digital teaching material management system and an interactive system. The system disclosed by the invention is scientific and reasonable in process and safe and convenient to use, character, graph, image, sound and resource management platforms are integrated, vivid sound image displayas well as a novel network resource platform and a teaching management platform are adopted, the teaching means and management means are enriched, the teaching resource and management resources are expanded, teacher resource and leadership management informationization can be enriched, the school classroom becomes simple, high-efficiency and intelligent, independent thinking and self-directed learning abilities are developed, the teaching pressure of the teachers is reduced, and the overall teaching level of the classroom is improved.

The present invention discloses a method for preparing tuna skin gelatin, belonging to the technical field of fish resources utilization. According to the invention, skin tuna skin is subjected to pretreatment, degreasing, acid and alkali treatment, and then is subjected to gelatin extraction, and deodorization by filtering through activated carbon, and ion-exchange purification to remove heavy metal ions, and then concentration under vacuum and spray-drying to obtain finished products of tuna skin gelatin with quality meeting the edible gelatin standards specified in national standards. The tuna skin gelatin of the invention can be further processed for use and can be used in medicine, food and cosmetic industries, achieving the purposes of turning waste into treasure, and comprehensively and efficiently developing high value-added tuna by-products. The method of the invention has advantages of: 1, a scientific and reasonable process is adopted, the temperature in the reaction process is low and easy to control, which saves energy and controls the molecular weight of the skin gelatin in a relatively narrow range, and the quality of obtained gelatin is high; and 2, activated carbon is used for filtering for deodorization, improving the taste of the product.

The invention discloses a plant-based artificial meat pie and a preparation process thereof, and the plant-based artificial meat pie mainly comprises the following raw materials: soybean drawing protein, soybean protein isolate, vegetable oil, water, a vegetable protein source, soy sauce, L-cysteine, Tg enzyme, a food gelling agent, plant-based auxiliary materials, seasonings and a food additive. Raw materials are subjected to wiredrawing protein rehydration, dehydration, shred removal, blending, mixing and stirring, compression molding, enzyme crosslinking, cooking, quick freezing and like, and plant-based artificial meat pie is prepared. The production process is clear, parameters are accurate, the utilization rate of raw materials is high, the taste and color of the prepared plant-based artificial meat pie can well simulate those of a real meat pie, and the plant-based artificial meat pie is rich in dietary fibers and proteins and almost does not contain cholesterol.

The invention discloses a dasyatis akajei chondroprotein polypeptide capable of resisting a prostate cancer and a preparation method and application thereof. The amino acid sequence of the polypeptide is Ile-Glu-Pro-His (IEPH), and in ESI / MS detection, a molecular ion peak molecular weight of m / z 495.96 Da ([M+H]<+>) is given out. According to the invention, the preparation method provided by the invention is scientific and reasonable; the process of enzymatic hydrolysis can be easily monitored; and the prepared polypeptide has substantial inhibitory effects on proliferation of prostate cancer cells DU-145 and PC-3 and can be used for preparation of drugs for resisting the prostate cancer.

The invention relates to a process for plating trivalent chromium on surfaces of plastic. The process is characterized by treating the surfaces of a plastic processing piece through the following steps: surface oil removal, surface micro-roughing treatment, reduction treatment, colloidal palladium activation, dispergation treatment, chemical nickel plating, watt nickel plating, bright copper plating, bright nickel plating, trivalent chromium plating, testing, packaging and storage. The process provided by the invention can be used for plating decorative chromium and nickel on the surfaces of plastic and rubber parts in communication, IT (information technology), digital, automobile and other industries, has the advantages of scientific and rational plating liquid and process, strong adhesion of a plating layer, uniform distribution of the plating layer, excellent quality of the plating layer and no use of extremely toxic and carcinogenic hexavalent chromium, and can be used for significantly reducing the environmental pollution.

The invention relates to non-woven fabric for manufacturing an Ni-MH battery sulfonated membrane, an Ni-MH battery sulfonated membrane and a manufacturing method thereof. The method comprises the following steps that: 1. hot concentrated sulfuric acid is used to singly sulfonate an ES composite filter bundle and a polypropylene fiber bundle (PP fiber bundle), and dilute sulphuric acid and water are used to clean the bundles; 2. the sulfonated fiber bundles are cut into raw material short fibers; 3. the raw material short fibers are made into a fiber mesh through a wet papermaking machine, adhered and formed into semi-finished product non-woven base material fabric by hot melting; 4. the semi-finished product non-woven base material fabric is compounded and rolled by hot melting, formed toprepare the non-woven fabric for manufacturing the Ni-MH battery sulfonated membrane by hot melting, finished and trimmed, to prepare the Ni-MH battery sulfonated membrane. From the raw material fiber bundle sulfonation to finished product manufacturing, the invention has the advantages of simple process, easy control, no large-sized equipment needed and easy industrial implementation, and solvesthe technical difficult problems of easy breakage and easy damage of the traditional non-woven base material fabric sulfonation.

The invention belongs to a preparation technology of an instant tea, relating to a preparation method of an asparagus leaf instant tea. As the prior art only picks vegetable asparagus, and loses the asparagus leaf, wherein the weight of the asparagus leaf is 70%-80% of the gross weight of plant, thereby wasting the resources; and the asparagus leaf is rotten, thereby polluting the environment. The preparation method of the asparagus leaf instant tea comprises the following four steps of: microwave inactivating enzyme of the asparagus leaf-composite formulating the leaf instant tea-hydrolyzing complex enzyme-concentrating and drying. The preparation technology has the advantages that the asparagus leaf instant tea has higher flavone content and soluble nitrogen content, and has physiological functions for enhancing human body immunity and anti-fatigue, and the like; is convenient in drinking, and can be drunken by adding water; is easy in storing and transporting; has a scientific and reasonable technology; has an energy-saving production technology, and is easy in controlling and operating; adopts an assistant extraction method with complex enzyme of cellulose and neutral protease to have mild hydrolysis condition and low ash content; and has wide raw materials source, abundant resource, low price, low cost and wide practicability.

The invention relates to a vacuum isothermal heat treatment process of a large die-casting mould, which is characterized by comprising the steps of: inserting thermocouples into the core and the surface layer of a mould, raising the temperature of a furnace to 550-625 DEG C at the speed of 150-200 DEG C per hour firstly, then raising the temperature of the furnace to 825-875 DEG C at the speed of 100-150 DEG C per hour, raising the temperature of the furnace (Tf) to reach an austenization sate within 20 minutes and preserving the temperature for 30 minutes; quickly cooling under cooling pressure not lower than 9Bar, decreasing the cooling pressure to 2Bar when the temperature of the surface of the mould (Ts) is decreased to 427 DEG C, stopping the rotation of a cooling fan and turning on a convection fan; and filling nitrogen pressure to be above 6Bar after isothermy, turning off the convection fan and restarting the cooling fan to rotate so as to realize quick cooling. Therefore, the invention can achieve the most ideal structure property and the minimum deformation, can guarantee the service life of the large die-casting mould, and has scientific and reasonable process, obvious technological advance and considerable economic values and market prospect.

The invention discloses an automatic assembling and rivet pressing method for a cupboard hinge. By arranging a rotating plate part, a triangular plate installing part, a stacked piece installing part, a pull strip installing part, a long nail installing part, a hydraulic pipe installing part, a short nail installing part, a rivet pressing part and a control part and controlling the other parts to act coordinately through the control part, all parts of the hinge can be automatically assembled and pressed in a riveting manner, the production cost is saved, and quality and efficiency are improved. The invention further discloses an automatic assembling and rivet pressing device for the cupboard hinge, and the automatic assembling and rivet pressing device for the cupboard hinge implements the method. The overall structure is reasonable in design, maintenance is easy, the needed operational capacity and the ergonomics requirement are met, and work has the characteristics of being fast, stable and accurate. Defects of a traditional machining manner are compensated for, mechanical and automatic scientific and technological production is achieved for an original complicated manual operation manner, the production efficiency is substantially improved, the production cost is effectively controlled, and the product quality is powerfully guaranteed.

The invention relates to the technical field of a lithium ion battery, and relates to a method for preparing a porous silicon / TiO2 composite negative electrode material by taking diatomite as a raw material. The method is characterized in that the diatomite after being subjected to purification processing is used as the raw material, and the porous silicon / TiO2 composite negative electrode material is prepared by a hydrolysis method and a magnesiothermic reduction method. The preparation method has the advantages of scientific and reasonable process and low cost and is simple to use; the composite negative electrode material obtained through preparation can be directly used as a negative electrode material of the lithium ion battery and has good cycle stability, the initial reversible specific capacity of the composite negative electrode material is 1,321.0mAh / g in a test under current density of 100mAh / g, the capacity is maintained 774.3mAh / g after circulation of 50 times, and the composite negative electrode material is excellent in electrical property.

The invention discloses a tuna ground meat polypeptide angiogenesis inhibiting factor as well as a preparation method and an application thereof. The amino acid sequence of the polypeptide angiogenesis inhibiting factor is Trp-Val-Thr-Gly-Ile (WVTGI), and ESI / MS (electrospray ionization / mass spectrometry) detection shows that a molecular ion peak (m / z) is 575.42Da ([M+H]+). The tuna ground meat polypeptide angiogenesis inhibiting factor Trp-Val-Thr-Gly-Ile (WVTGI) can be used for effectively inhibiting angiogenesis of chorioallantoic membrane (CAM) of chicken embryo and multiplication of prostate cancer cell DU-145. The tuna ground meat polypeptide angiogenesis inhibiting factor Trp-Val-Thr-Gly-Ile (WVTGI) can be used for preparing a medicine used for inhibiting angiogenesis and preventing and treating prostate cancer.

The invention discloses a preparation method of an urechis unicinctus visceral protein source zinc chelating peptide. The zinc chelating peptide takes utrechis unicinctus viscera as a raw material, and the product is obtained through viscera pretreatment, protein extraction, enzyme hydrolysis, gel purification and chromatography. The prepared zinc chelating peptide has an amino acid sequence of Phe-Pro-Tyr-Lys-His, and the ESI-MS detection molecular weight is 690.78 Da. The preparation of the zinc chelating peptide provides a technical support for development of zinc supplemental health-care food and drugs, and also provides a new idea for high-valued utilization of the urechis unicinctus viscera.

The invention discloses a three-section type heating and roasting method for refining vanadium pentoxide, which uses minerals containing vanadium as raw materials. The method includes raw material preparation and raw material heating and roasting. The raw material preparation includes raw material crushing and raw material heating productivity detection. The raw material heating and roasting adopt the following three-section mode: material heating, deep decarburization and preliminary roasting and oxygen-enriched roasting, and the three-section mode can be used independently or in combining mode according to difference of raw material heating productivity. In the deep decarburization and the preliminary roasting and the oxygen-enriched roasting processes, a radiating device and a stirring device are used for controlling material roasting temperature and keeping materials from being coked. Compared with the prior art, the three-section type heating and roasting method for refining the vanadium pentoxide has the advantages of being scientific and reasonable in heating, decarburization and roasting processes of the raw materials, not prone to coke during roasting, small in energy consumption, high in vanadium conversion rate and yield and small in pollution. The roasting temperature is easy to control.

The invention relates to a dressing method for high-phosphor-content oolitic hematite. The dressing method has the technical scheme that the method comprises the following steps that 1, high-phosphor-content oolitic hematite ore with the crushing granularity smaller than 20mm to 30mm is fed into an ore grinding machine, and the high-phosphor-content oolitic hematite is subjected to continuous two-section ore milling until the ore with the ore fineness smaller than 0.074 accounts for about more than 90 weight percent; 2, the milled ore pulp passes through a pulp removing hopper for removing sludge smaller than 0.020m, and the removed sludge is directly subjected to tail-escaping; 3, the ore pulp subjected to the sludge removal is subjected to twice continuous wet type strong magnetic sorting, tailings in the first strong magnetic sorting and tailings in the second strong magnetic sorting are directly discharged into a tailing storage pool; 4, the hematite ore pulp subjected to the strong magnetic sorting is subjected to re-sorting by a table concentrator to obtain coarse particle hematite concentrate; 5, the re-sorted table concentrator middlings and tailings after the coarse particle hematite concentrate sorting are mixed, then, a one-coarse one-sweep and three-concentration floatation process is adopted, fine particle hematite concentrate is obtained, the two parts of hematite concentrate including the coarse hematite concentrate and the fine hematite concentrate are mixed, dephosphorizing agents are added for stirring treatment, and the final oolitic hematite concentrate is obtained. The method has the characteristics that the process flow is simple, the in-site operation is simple, the cost is low, the grade of the oolitic hematite concentrate is high, and the recovery rate is high. The TFe grade of the obtained oolitic hematite concentrate is higher than 58 weight percent, P is less than 0.12 weight percent, and the recovery rate is higher than 70 weight percent.

An immunoactive substance extracted from tuna fish head and a preparation method thereof are provided. The method comprises the following steps: pretreatment, washing, crashing, protease digestion, hydrolysis with neutral protease and papain, oil-water separation, hydrolysate centrifugation, oil-water separation of filtrate, separation of protein hydrolysate and fish oil, fractional separation, and separation of protein hydrolysate by using ultrafiltration membrane, to obtain immunoactive substance of tuna fish head. The invention utilizes two proteases to hydrolyze proteins of tuna fish head and centrifugally separates peptide-rich protein hydrolysate with immunological activity. The protein hydrolysate can be further processed to oral liquid, capsules and tablets. Furthermore, the invention produces fish oil rich in polyunsaturated fatty acids, thereby realizing the comprehensive and high-efficiency utilization of tuna fish head. The immunoactive substance of tuna fish head can significantly improve humoral immunity and nonspecific immunity in mice and enhance the cellular immune function of mice.

The invention discloses a method for artificially breeding young paphia textzle gmelin. After searching, the researches on paphia textzle gmelin at home and abroad are just rising, relevant reports are few and the researches relating to the breeding method of young paphia textzle gmelin are never disclosed in any technology. The large-scale breeding of young paphia textzle gmelin is carried out by the technical measures of strengthening parents, artificially hastening parturition, artificially incubating, choosing excellent D-typed larvae, culturing larva, metamorphosis-attaching larvae and culturing juvenile mollusks. The method for artificially breeding young paphia textzle gmelin, disclosed by the invention, has the characteristics of uniqueness and advancement, a higher academic leveland a practical value; the supply and demand contradiction of paphia textzle gmelin can be fundamentally solved and the breeding industry chains of paphia textzle gmelin are formed along the coast ofBeibu Gulf. The method for artificially breeding young paphia textzle gmelin is important for gradually recovering natural resources of paphia textzle gmelin and promoting sustainable development of artificial breeding of paphia textzle gmelin.

The invention relates to a gold spot temmoku glaze and a preparation technology thereof. The preparation technology is characterized by comprising the steps of processing gold spot temmoku glaze ceramic glaze and a green body raw material, glazing, sintering and checking. The gold spot temmoku glaze provided by the invention fills the gap that temmoku glaze ceramic has no golden flow liners or spots, a new variety is added to the temmoku glaze ceramic, and the gold spot temmoku glaze prepared by utilizing the preparation technology provided by the invention is mainly characterized by taking black as a substrate, flow liners or spots on the surface of the gold spot temmoku glaze are gold, and the colour of the gold spot temmoku glaze is gorgeous, so that the gold spot temmoku glaze has a good decorative effect; and the preparation technology of the gold spot temmoku glaze is simple, the flow is scientific and reasonable, the preparation efficiency is higher, the energy is saved and the environment is protected, so that the preparation technology provided by the invention is applicable to large-scale development and application.

The invention specifically relates to a beneficiation method for preparing kyanite ores. The technical scheme includes that step one, the kyanite ores with certain particle sizes are subjected to ore grinding; step two, ore slime which is less than 0.020 mm in ground ore pulp is removed through a desliming bucket; step three, the desliming ore pulp is subjected to continuous wet type strong magnetic sorting; step four, the kyanite ore pulp which is subjected to the strong magnetic sorting is subjected to reselection through a table concentrator to obtain coarse particle kyanite ore concentrates; and step five, a flotation selection process is used for tailings of the table concentrator to obtain fine particle kyanite ore concentrates, and the coarse particle kyanite ore concentrates and the fine particle kyanite ore concentrates are combined and subjected to treatment of acid leaching and iron impurity removing to finally obtain the kyanite ore concentrates. The beneficiation method for preparing the kyanite ores has the advantages of being simple in technological process, easy to operate in scene and low in cost; the grade of aluminum oxide of the obtained kyanite ore concentrates is over 58 wt. %, the recovery rate of kyanite is over 70%, requirement of the country-levelkyanite ore concentrate standard can be satisfied, and the kyanite ore concentrates can be used as high-level refractory materials or raw materials of other industrial products.

The invention belongs to the technical field of concrete construction, and particularly relates to a cold region cold weather concrete construction method. The method comprises the following steps of 1, selecting raw materials, and preparing cement, aggregate, water and an additive for use; 2, preparing tools and equipment for construction; 3, according to actual situation, adopting a matching ratio adjusting method, a heat storage and thermal insulation method, an external heating method or an additive mixing method for concrete raw material mixing; 4, constructing the heat preservation environment in the mixed concrete conveying process; 5, performing concrete pouring operation; 6, performing concrete maintenance. The method has the advantages that due to the fact that some characteristics of concrete are changed or poured concrete is subjected to external insulation measures, a traditional technology for spraying chloride on the surface of poured concrete for heat insulation is replaced, normal construction can be kept on the condition that the temperature is quite low, and the construction progress speed is increased on the premise that the quality is ensured.

The invention discloses a teaching reflection system and method based on wisdom class teaching. Wisdom class teaching involves a wisdom class teaching part, a cloud platform, a remote management system, student terminals, parent terminals, teacher terminals and a courseware downloading part. Teaching reflection involves teaching method summarization, teaching emotion summarization, teaching content summarization, student reflection summarization and parent feedback summarization. The system and method are scientific, reasonable and convenient to use; by means of the teaching method summarization, teaching emotion summarization, teaching content summarization, student reflection summarization and parent feedback summarization, the summarization and reflection of the behaviors of teachers themselves in the teaching period and the behaviors and feedback of students in families are facilitated for the teachers, the individual space is provided for the teachers for teaching reflection carding and filing, and the objective reference basis can be conveniently provided for summarization work and self improvement after a semester ends; by arranging the cloud platform, the content of wisdomclass teaching and the class behaviors of the students can be uploaded and stored.

A preparation method of immune-enhancing mussel enzymatic hydrolytic polypeptide and corresponding tablets comprises the following steps: mixing a raw material of mussel dry powder with a buffer according to a weight volume ratio of 1:20-1:25, homogenizing the mixture, adjusting the pH value to 9.5-10 to obtain a mixed solution; heating the mixed solution to 50-55 DEG C, preheating for 10-15 min, respectively adding an alkaline protease and a neutral protease with a weight being 1.0%-1.5% of the raw material, performing enzymatic hydrolysis at 50-55 DEG C for 2-4 hours; performing enzyme deactivation of the enzymatic hydrolytic product to obtain an enzymatic hydrolytic solution, then orderly performing desalination, concentration, and spray drying of the enzymatic hydrolytic solution to obtain the immune-enhancing enzymatic hydrolytic polypeptide. The invention also discloses a related immune-enhancing mussel polypeptide tablet. The preparation method of the invention is simple; the obtained immune-enhancing polypeptide and its tablet have high activity; the raw material resource is abundant; and the preparation method has strong industrial implementation potential.

The invention relates to a continuous compaction production line and technical equipment for recombinant bamboo-wood integrated square material. The continuous compaction production line comprises a feeding device, a prepressing device, a gradually-pressing device and a constant-pressure device which are connected in sequence; the prepressing device is a rolling pressing wheel; the gradually-pressing device and the constant-pressure device are continuously-moving pressing devices and both comprise an upper chain type moving pressing mechanism and a lower chain type moving pressing mechanism which correspond to each other up and down, move synchronously and operate in a closed loop; the upper chain type moving pressing mechanism is provided with a continuous convex-block pressing mould 35'; the lower chain type moving pressing mechanism is provided with a continuous rectangular-slot mould cavity 30'; the gradually-pressing device is provided a gradually-pressing opening which looks like a wedge under the primary line of sight; the upper chain type moving pressing mechanism and the lower chain type moving pressing mechanism of the constant-pressure device are laminated adjacently in parallel; and the constant-pressure device is provided with a constant-pressure generating and retaining mechanism. The intermittent fixed hydraulic-machine type static pressing in the prior art is changed into the continuous moving chain type dynamic pressing, the infinite continuous pressing is realized, the mould is omitted, the process step and the equipment are simplified, and high continuous compaction production efficiency and high production quality are achieved.

The invention discloses a vacuum filter, and belongs to the field of filtration, which is used for solving the problems of cooling and dedusting of high-temperature and dust-contained gas in a vacuum working system. The vacuum filter comprises a cavity body, a diffuser and a filter element, wherein the cavity body is provided with a gas inlet connected with a specific gas pipeline and a gas outlet connected with a vacuum pump; the top end of the cavity body is provided with a top cover connected with the cavity body in a sealed mode; the cavity body is internally provided with the diffuser at the gas inlet; the filter element is installed at the center in the cavity body; the side wall of the filter element is provided with filter holes; the bottom surface of the filter element is provided with an opening leading to the gas outlet of the cavity body, thereby preventing the vacuum pump and an upstream-downstream system from being damaged by high-temperature, corrosive and dangerous dust particles, and solving the problem of too complex and frequent maintaining frequency of the vacuum pump of the vacuum filtration system. From the aspect of environment protection, gas in pipelines can be further cooled down and purified, and air pollution can be reduced.