140results about How to "Good market benefits" patented technology

The electroplating sludge treating and utilizing process includes the following steps: 1. adding alkali to stoved electroplating sludge, roasting, leaching out soluble metal in dilute alkali solution, and filtering to obtain alkali leached slag and alkali leached liquid; 2. adding acid to the alkali leached liquid, filtering to obtain hydrolyzed slag and hydrolyzed liquid, and preparing bichromate with the hydrolyzed liquid; and 3. dissolving the alkali leached slag in acid solution, filtering, electrodepositing the filtrate and filtering to obtain electrodeposited solution, depurating the electrodeposited solution and crystallizing to obtain nickel salt. The process has low power consumption and low cost, and can convert most of Cr, Cu and Ni in electroplating sludge into bichromate, nickel salt, copper powder and other side product.

The invention discloses a deep sea net box cultivating apparatus for offshore wind field, which comprises an offshore wind turbine foundation, wherein an operation platform is mounted on the top portion of the offshore wind turbine foundation; a rotary sleeve ring fixing system is mounted on a lower end of the offshore wind turbine foundation; the rotary sleeve ring fixing system is connected to a rotary arm mechanism; the rotary arm mechanism is connected to an offshore net box module through a cable connecting rod component; the rotary sleeve ring fixing system comprises a reinforced cylinder sleeve; an upper rotary sleeve ring and a lower rotary sleeve ring are respectively mounted on an upper end and a lower end of the reinforced cylinder sleeve; and the upper rotary sleeve ring and the lower rotary sleeve ring are respectively connected to the rotary arm mechanism through an upper connecting buckle and a lower connecting buckle. According to the utility model, by adopting the apparatus provided herein, the offshore wind field can be applied with various purposes; organic combination between the offshore wind power generation and the offshore net box cultivation is realized; the space of the offshore wind field and the offshore wind power are fully utilized, thus improving the overall economy benefits.

The invention discloses a method for cultivating shitake mushrooms by segmental fruiting. The method comprises the following steps of: making bags and inoculating from September to November each year; fruiting and harvesting at the first segment from April to June next year; making the plant dormant in summer from July to August; fruiting and harvesting at the second segment from September to November; stimulating fungus bags during fruiting at the second segment when the minimum air temperature drops to below 23 DEG C in early September to promote the fruiting at the second segment; injecting deep well water at constant temperature of 24 DEG C once to the fungus bags by using water injection needles from 20 O' clock to 7 O'clock next day, wherein the time is controlled to be less than 10S, and a great amount of yellow water seeps from the fungus bags; managing the fruiting after injecting the water; continuously harvesting for 2 to 3 times. According to the method, the two-segment fruiting technology is adopted, two-segment fruiting of the shitake mushrooms from May to June and from September to November is achieved, the yield is improved by 40 percent compared with that of the conventional cultivating method, and the efficiency is increased by 90 percent.

The invention discloses a technology method used for producing poly aluminium chloride and calcium aluminate. The technology method comprises following steps: 1, ash stir frying is carried out, and metal aluminum is recycled so as to obtain secondary aluminum ash; 2, the secondary aluminum ash is subjected to deamination processing so as to obtain a deaminated aluminum ash slurry; 3, the deaminated aluminum ash slurry is subjected to defluorination processing so as to obtain a defluorinated aluminum ash slurry; 4, the defluorinated aluminum ash slurry is filtered so as to obtain a filtrate anda filtration residue, wherein the filtrate is a poly aluminium chloride solution; and 5, the filtration residue is washed until the pH value is 7, is uniformly mixed with a calcium based auxiliary material, drying and high temperature reaction are carried out, after reaction, cooling, crushing, and grinding processing are carried out so as to obtain calcium aluminate. According to the technologymethod used for producing poly aluminium chloride and calcium aluminate, secondary aluminum ash is subjected to complete harmless processing, so that high efficiency resource utilization of secondaryaluminum ash is realized, and the produced products possess better economical benefit.

The invention discloses a novel wood-plastic composite material, which is prepared from a wood meal raw material, waste fiber textiles, solid wastes and thermoplastics by the processes of crushing, blending, granulation, extrusion molding and the like. According to the novel wood-plastic composite material, waste mushroom stems, the waste fiber textiles, the solid wastes and the like can be comprehensively utilized, and the wood-plastic composite material prepared from the waste mushroom stems, the waste fiber textiles and the solid wastes is low in cost and high in mechanical performance and service performance, and has the characteristics of low cost and strong strength; in addition, a production method is easy to operate, has lower requirements on a process condition and production equipment, and has broad market application prospect, and large-scale production can be implemented.

The invention discloses a polyethylene / wood powder composite wire for fused deposition modeling, and a preparation method thereof. Raw materials and assistants used by the polyethylene / wood powder composite wire for fused deposition modeling comprise 70-90 parts of polyethylene, 10-30 parts of wood powder, 5-10 parts of a compatilizer, 0.9-3 parts of a lubricant, 0.9-3 parts of a plasticizer and 0.1-0.5 parts of a stabilizer. Addition of the wood powder to the polyethylene / wood powder composite wire inhibits crystallization of polyethylene, reduces shrinkage deformation of a fused deposition modeled product, and improves the modeling precision of the product. The fused deposition modeled product has the advantages of good toughness, improved mechanical performances and strong practicality. The invention also provides the making method of the polyethylene / wood powder composite wire. The method has the advantages of easy operation, low technological conditions and production device requirements, realization of large-scale popularization and production, wide market prospect and extremely good market benefits.

The invention relates to a method for coding electronic books, electronic newspapers and electronic magazines with hyperlink. The method comprises the following steps of: firstly, processing text and graph typesetting information input by a user through a TTK-format electronic book editor to generate a TTK-format electronic book with hyperlink, processing the text and graph typesetting information input by the user according to a Json protocol to generate the TTK-format electronic book, and compressing and packing the TTK-format electronic book; secondly, utilizing the Internet to download the TTK-format electronic book of the first step to terminal equipment which is an electronic reader; and finally, reading the decoded TTK-format electronic book on the electronic reader by the user.

A Japanese Grifola frondosa cultivating method specifically comprises steps as follows: selecting wood chips of broad-leaf species as a main cultivation material, and selecting wheat bran and Indian meal as nutrition sources; and then performing material mixing, bagging sterilization, inoculation, cultivation management, fruiting management and harvesting according to routine methods. During the cultivation management process, the temperature in a cultivate chamber is maintained to be 22-23 DEG C, the humidity is 60%-70%, and when white hypha lumps are formed on the surface of a fungus bag, gray primordium are formed and transparent water droplets are formed on the surface, 50 Lux lighting stimulation is required; and in a fruiting management process, when all the primordiums change into black and the water droplets are reduced, a ventilation silicone window at the upper part of the bag is required to be cut open by a cutter blade promptly, meanwhile, the temperature of the fruiting chamber is maintained to be 16-18 DEG C, the humidity is above 95%, and the lighting condition is maintained to be 500 Lux. With the implementation of the Japanese Grifola frondosa cultivating method, the condition that the precedent that industrial cultivation of the Grifola frondosa inland is not started yet at present is broken through, further, the production efficiency is quite high, and the market benefits are quite good.

The invention discloses a polypropylene wire material for 3D printing and a preparation method thereof. The polypropylene wire material is composed of co-polypropylene, low-melting-point homo-polypropylene, inorganic filler, thermoplastic elastomers, a plasticizer and a stabilizer. The polypropylene wire material is low in material crystallinity degree, shrinkage distortion and warping, has good 3D printing effects and printing accuracy, and can reduce cost to a large extent. The preparation method for the polypropylene wire material for 3D printing is simple in technology and lower in production equipment requirement, can achieve large-scale production and popularization, and has a wide market prospect.

The invention provides a polypropylene powder product for selective laser sintering and a preparation method of the polypropylene powder product. Polypropylene powder has narrow particle size distribution, high sphericity and good fluidity, has no warping deformation after selective laser printing, and has excellent performance of selective laser sintering and high forming accuracy. Printing of hollow glass bead filled polypropylene powder is implemented by using a selective laser sintering process, hollow glass beads in the obtained part are not crushed, the density of the part can be greatlyreduced, and lightweight of a material can be effectively achieved; by using a coupling agent and a compatibilizer provided by the invention, the compatibility between the hollow glass beads and polypropylene can be well improved; and due to a special powder mixing process, the hollow glass beads can be tightly combined with the polypropylene after laser sintering, mechanical properties, particularly the rigidity, can be greatly improved, and the polypropylene powder product has great application values in the field of mechanical parts.

The invention discloses a polylactic acid material for fused deposition molding and a preparation method of the polylactic acid material. The polylactic acid material for fused deposition molding is prepared from the following raw materials and auxiliaries: 100 parts of polylactic acid, 1 to 30 parts of inorganic filler, 2 to 30 parts of polylactic acid-polyethylene glycol copolymer, 0.9 to 3 parts of lubricating agent, 0.9 to 3 parts of plasticizer, 0.1 to 0.5 parts of stabilizer and 0.1 to 2 parts of hydrolysis resistant agent. According to the polylactic acid material, due to the addition of the polylactic acid-polyethylene glycol copolymer, the inorganic filler is dispersed more uniformly in the polylactic acid, the mechanical property of a fused deposition molding workpiece is promoted, and the practicability is higher. In addition, the invention also provides the preparation method of the polylactic acid material, the preparation method is easy to operate, and low in requirements on technological conditions and production equipment without adding other equipment to promote the dispersion of the inorganic filler; large-scale promotion and production can be realized, the market prospect is wide and the market benefit is extremely excellent.

The invention relates to a synthesizing method, partial intermediate products and final products of a chiral beta-alkamine derivative. The synthesizing method of the chiral beta-alkamine derivative is characterized by comprising the steps of: selecting commercialized materials in the market and NH2R2 as initial materials, wherein R2 is a Cl-C6 alkyl group, a C3-C6 naphthenic base and an aryl group or an aryloxy; obtaining the intermediate products and the final products through a chemical reaction process with moderate conditions, wherein R1 and R2 are the Cl-C6 alkyl group, the C3-C6 naphthenic base and the aryl group or the aryloxy, and a chiral center is in an S or R shape. The invention has the advantages that the adopted materials are easy to obtain and at low price and can meet the requirements of large-scale production, chiral compounds are used as the initial materials, optical purity is retained in consequent reaction without finding racemization, and committed steps accord with the requirements of the current green chemistry; in addition, the invention has the advantages of simple synthesizing method, good selectivity, high yield coefficient, easy operation and good market benefits.

The invention relates to a novel dual-channel peritoneal dialysis catheter suitable for operation under an endoscope. The peritoneal dialysis catheter comprises a peritoneal dialysis catheter body, the peritoneal dialysis catheter body comprises an external abdominal section, a gooseneck section and an abdominal cavity section, dacron buckles are disposed at two ends of the gooseneck section respectively, the abdominal cavity section comprises a first channel pipe and a second channel pipe, the first channel pipe and the second channel pipe are communicated with the peritoneal dialysis catheter body, drainage holes are formed in the first channel pipe and the second channel pipe, and the drainage holes are uniformly distributed. The novel dual-channel peritoneal dialysis catheter suitable for operation under the endoscope has the advantages that the dual-channel structural design is applied, catheter floating and blocking is not prone to occur, and the service life is long; more drainage holes are formed in the peritoneal dialysis catheter than those of single channel, the abdominal permeability is good, liquid replacing time is reduced, removing capacity of metabolic waste is increased, the efficiency is high, the peritoneal dialysis catheter is put under the endoscope, the positioning is accurate, operations are safe, reliable and low in price, and the cut part is small.

The invention discloses a weeding composition containing halosulfuron-methyl and fluroxypyr. The effective ingredients of the weeding composition are composed of halosulfuron-methyl and fluroxypyr or ester compounds thereof, wherein the amount of the fluroxypyr ester compounds is determined by being converted into the amount of fluroxypyr, and the weight ratio of halosulfuron-methyl to fluroxypyr is 1:10 to 5:1. The composition disclosed by the invention can be prepared into a suspending agent, water dispersible granules, wettable powder or a dispersible oil suspending agent allowed to be used in the agriculture. The composition disclosed by the invention is reasonable in component screening, remarkable in synergistic effect, capable of expanding a herbicide controlling spectrum and reducing a pesticide application cost, good in safety to corn and sugarcane, capable of improving prevention and treatment effects on weeds in corn and sugarcane fields, and especially suitable for preventing and removing weeds such as field bindweed, chenopodium glaucum, purslane, amaranthus retroflexus, tropic ageratum herb, piemarker and cyperus rotundus.

The invention discloses matte photosensitive resin for photocuring quick molding and a preparation method thereof. The resin is prepared from the following raw materials in parts by weight: 5-45 parts of urethane acrylate, 5-45 parts of epoxy resin, 10-25 parts of reactive diluent, 1-8 parts of cationic photoinitiator, 1-8 parts of free radical photoinitiator, 1-10 parts of micron silicon dioxide, 1-10 parts of polyethylene wax powder and 1-3 parts of nonionic surfactant. The photosensitive resin has an excellent matte effect due to the addition of micron silicon dioxide and polyethylene wax powder after photocuring quick molding, and clear printing textures on the surface of a molded part manufactured by photocuring quick molding cannot be observed due to the introduction of the matte effect, so that the surface quality of the molded part can be remarkably improved. Therefore, the manufactured three-dimensional solid has better mechanical performance, the shrinkage and warpage situation of the molded part can be reduced, the printing accuracy can be improved, and the practicality is stronger.

The invention discloses a PHS short message method compatible with multiple coded formats, which comprises, storing multiple PHS short message coded formats and their conversion scheme on the server, the PHS terminal sending a testing short message to the short message center, the short message center recognizing the short message type and storing it on the data base server, the PHS terminal transmitting and receiving the short message, by using the method of the invention, a PHS system can be compatible with multiple coded formats.íí

The invention discloses a fertilizer special for walnut, comprising, by weight, 40-50 parts of urea, 20-25 parts of ammonium dihydrogen phosphate, 25-30 parts of potassium humate, 15-20 parts of magnesium sulfate, 10-15 parts of diatomite, 1-2 parts of solid bacterial agent, 200-230 parts of corn stalk, 80-100 parts of wheat bran, 100-150 parts of farm manure, 50-80 parts of sawdust, and 50-60 parts of peanut shell. Waste is well utilized in the fertilizer, soil environment is improved using the fertilizer, less environmental damage is caused, and the fertilizer has high nutritional value and slow-release ability, the trouble of frequent application is omitted, and cost is saved; in addition, the fertilizer has certain effect of resisting disease and pest damage, less pesticide is applied, and the environment is protected. In total, yield of Chinese walnut is increased by 15-20%, and the Chinese walnut is imparted high nutritional value and has considerable market benefit.

The invention provides a method for preparing a metal micro-nano array electrode by using a ZnO crystal as a template. The method employs a ZnO crystal array as the template and comprises the steps of submerging the template by photoresist, dissolving ZnO away after the photoresist is stabilized, and electrodepositing the metal crystal in holes formed by dissolving ZnO away. The obtained metal crystal has ZnO morphology, being in hexagonal prism shapes.

The invention provides a prestressed foundation pit support bored pile, which comprises a hollow cylindrical pile body. A cavity communicating in the axial direction of the pile body is formed in thepile body, and reinforcements are arranged in the cavity; a reinforcement cage is tightly connected with the pile body, a plurality of prestressed reinforcements are arranged on the positions, close to the excavated side of a foundation pit, on the pile body at intervals and extend in the axial direction of the pile body, and corrugated pipes coaxially sleeve the prestressed reinforcements; the top ends of the prestressed reinforcements and the top ends of the corrugated pipes are fixed to the end face of the top end of the pile body through anchorage devices; and the bottom ends of the prestressed reinforcements penetrate through the corrugated pipes and are fixed to the pile body through anchorage sections.

Provided are a special-shaped glass remote control cutting, breaking and grinding integrated processing production line and an operation method thereof. The processes of cutting, edge breaking, edge grinding and the like are integrated to efficiently process all kinds of special-shaped glass in a fully automatic mode at a time, precision, stability and quickness are achieved, waste is treated by itself, and the performance of the whole machine is excellent. Operation is easy, use is safe and convenient, the rate of finished products reaches up to 99.96%, and production quality and efficiency are greatly improved. Energy saving and environment friendliness are achieved, production cost is reduced by 50%, and the requirements of the production processes and the need of a special-shaped glass deep processing production line for fast development and changes are met. The special-shaped glass remote control cutting, breaking and grinding integrated processing production line is composed of a glass GPS positioning and navigation system, a special-shaped glass remote control cutter, a special-shaped glass remote control edge breaking machine, a special-shaped glass remote control edge grinding machine, a glass remote control cleaning machine, a glass control conveying device, a sensing conveying device, a first servo motor, a first ball screw, a cutting linkage mechanical arm, an edge breaking linkage mechanical arm, an edge grinding linkage mechanical arm and the like.

The invention discloses a verification system and a verification method for a hand type laser distance measuring instrument. The verification system includes that a fixed dragging plate and a movable dragging plate are arranged on guiding rail, wherein a distance measuring instrument adjusting platform, a total station instrument adjusting platform and a near-end reflective mirror component are arranged on the fixed dragging plate. The distance measuring instrument adjusting platform is used for being provided with the distance measuring instrument and the total station instrument adjusting platform is used for being provided with a total station instrument. A far-end reflective mirror component is arranged on the movable drag plate. A second diaphragm is arranged on the movable drag plate and a first diaphragm is arranged on the fixed dragging plate. The invention further discloses the verification method for the hand type laser distance measuring instrument, wherein the verification method uses the verification system. The verification device and the verification method for the hand type laser distance measuring instrument are simple in arrangement, convenient to operate, small in occupied area, and high in measuring precision.

The invention relates to a multi-functional geological prospecting drill head, and belongs to the technology field of geological prospecting. Threads capable of being connected with a drill rod are arranged on one end of the drill head, and drill head blades are mounted on the other end of the drill head; a signal collecting port is formed in the outer wall of the drill head, and a transparent protective cover is fixed to the signal collecting port ; a camera, a temperature sensor, a lighting mechanism, a power supply and a switch are mounted in the transparent protective cover, and the camera, the temperature sensor, the lighting mechanism and the switch are all connected with the power supply to form a closed loop circuit; and the camera and the temperature sensor both has wireless signal transmission functions, an image shot by the camera and a signal collected by the temperature sensor are transmitted into an external processor through the wireless signal transmission functions. The multi-functional geological prospecting drill head has a function of monitoring the drilling process and the temperature change of the drill head in the whole process. The geological prospecting drill head has good market benefits.

The invention discloses a rock wall cultivation method for Dendrobium officinale. The rock wall cultivation method includes the following steps: (1) rock wall selection and preparation: selecting a rock wall having an appropriate slope, and using a tool to dig holes in a surface of the rock wall, wherein the depth of the holes is 4-6 cm, the diameter of the holes is 4-6 cm, and the distance between two holes is 8-12 cm; (2) rock wall disinfection, spraying the rock wall with Metaldehyde wettable powder to kill snails; (3) specie source selection, selecting plants which has been domesticated for 2 years, have well developed root systems, and have no pest and diseases as specie strains; and (4) planting and cultivation.

The invention discloses a tubular air cleaner and belongs to household appliances. The tubular air cleaner is characterized in that an outdoor air outlet is formed between a wall and a guiding cover, an indoor air exhaust air outlet is formed in the middle of the drainage cover, a control module is installed at the lower end of the outdoor air outlet, the periphery of an outdoor air inlet passage is the wall, an indoor air exhaust passage is nested on the inner periphery of the outdoor air inlet passage, the diameter of the indoor air exhaust passage is one fourth that of the outdoor air inlet passage, the outdoor air outlet is formed in the left side of the outdoor air inlet passage, an upward bended opening which forms a 90-degree angle is arranged in the right side of the outdoor air inlet passage, a turbo-fan is arranged at the upper end of the bended opening, and a filtering membrane system, a primary filtering system and a hemispherical protective cover are sequentially nested in the periphery of the turbo-fan. The right end of an indoor air exhaust air inlet is connected with the indoor air exhaust passage, a downward bended opening which forms a 90-degree angle is formed in the right end of the indoor air exhaust passage, and the lower end of the bended opening is the indoor air exhaust air outlet. The filtering membrane system is provided with an ultraviolet sterilization lamp, an HEPA efficient filtering membrane and an activated carbon filtering membrane from inside to outside in sequence. The tubular air cleaner solves the difficult problems of filtering and exchange of indoor air and outdoor air and is widely applied to daily families and the like.

The invention relates to a synthesis method of a derivative of chiral Beta-amino-alcohol and part of intermediate products and final products thereof. The method selects a raw material which is commercialized on a market or a raw material of Alpha-halogeno ketone with easy preparation as an initial raw material, wherein X is Br or Cl, the final product with the chemical formula as the accompanying drawing is obtained by reaction or wherein R1=H, 2-Cl, 3-Cl, 4-Cl, 2, 4-Cl, 4-Br, 4-F, 4-CF3 and 4-NO2; R2=H, 2-OMe, 3-OMe, 4-OMe, 4-F, 4-Cl, 4-Br, 3-Br, 3-F, 3-Cl, 2-Br, 2-Cl, 2F, 4-Me, 3-Me and 2-Me, and the chiral center is S or R; the intermediate product with the chemical formula is shown in the accompanying drawing and the chiral center is in S configuration or R configuration; and the final product with the chemical formula is shown in the accompanying drawing and the chiral center is in S configuration or R configuration.

The invention provides a group of ink for printing a conductive film and a use method thereof, which can be used for manufacturing circuit components, circuit leads, antennae of radio-frequency circuits, and the like. The invention adopts the technical scheme that at least two kinds of solutions are sprayed to generate a metal film on a substrate through a chemical reaction. The metal film generated after the chemical reaction has good conductibility and can be used as a circuit component, a lead or an antenna. The method has lower requirement for the substrate material and can greatly reduce the manufacturing cost of circuits, and the generated film is dense and has strong adhesive force.

The invention discloses a medicine for treating parasitic diseases of pigs and a preparation method thereof. The medicine comprises the following raw medicinal materials: Mexican tea herb, cyrtomium rhizome, dark plum fruit, pomegranate root, bigfruit Elm product, bark of David christmashush, areca seed, pumpkin seed, herb of Wilson passionflower, amur corktree bark, stem and leaf of bird rape, seedling in cushaw, pepperweed seed, leaf of betel pepper, honeysuckle stem, heterophylly falsestarwort root, rangooncreeper fruit, radix astragali, coptis root, malt sugar, honey, bistort rhizome, common burreed rhizome, zedoray rhizome, aloe, dried tangerine peel, parslane herb and rhizoma dioscoreae. The medicine has the beneficial effects that the medicine has the functions of killing and expelling parasites, has good curative effects mainly on parasitic diseases of pigs, has strong pertinence and direct expelling property, is cheap, is nontoxic and harmless, does not have residues, is safe and convenient, has comprehensive functions and can achieve the effects of improving the physiques of pigs, boosting the immunities of pigs, increasing the survival rate and increasing the market benefits.

The invention provides an edible fungi table vegetable and a making method thereof. The table vegetable is made from, by weight, 145-160 parts of vegetable oil, 28-35 parts of pickled red pepper, 13-17 parts of pickled vegetables, 15-18 parts of pickled ginger, 7-10 parts of pickled rice chili, 58-65 parts of fried dry shiitake mushrooms, 85-90 parts of salted pleurotus eryngii, 3-5 parts of preserved pickle, 2.5-3.5 parts of onions, 11-15 parts of pickled garlic, 2-2.3 parts of chili powder and 2.5-3 parts of salt. The edible fungi table vegetable is rich in nutrition, has strong flavor and few additives, is green, healthy and excellent in gastronomic performance, and the raw materials are low in cost.

The embodiment of the invention provides a two-stage supply chain coordination method based on a quantity discount contract under information symmetry condition. Under the condition of the two-stage supply chain information symmetrical, when the purchasing amount of a retailer exceeds the standard purchasing amount, a manufacturer gives a certain price discount. The method includes the steps of establishing a standard purchasing decision-making model and a standard production decision-making model respective for a two-stage supply chains before coordination, solving the models to obtain the minimum cost and the maximum profit to serve as measurement standard for the subsequent coordination, establishing a coordinated mathematical model, determining whether the cooperation conditions of thetwo parties are met or not based on the cooperation condition, and obtaining the optimal discount rate, purchasing quantity and production quantity by using Nash equilibrium solution. Better market benefits can be obtained by using the two-stage supply chain, and long-term cooperation relation of two parties can be maintained.

The invention discloses a method for preparing recombinant bacillus subtilis plasmin and an enteric capsule thereof. The method comprises the following steps: 1) recombining fermentation of bacillus subtilis plasmin by using bacillus subtilis plasmin recombinant yeast, and establishing a separation purification method; 2) purifying recombined yeast fermentation broth by using hydrophobic chromatography packing so as to obtain a purified liquid; 3) performing desalination chromatography treatment on the purified liquid so as to obtain purified recombinant bacillus subtilis plasmin; 4) scanning a freezing drying protection agent, and establishing a vacuum freezing drying process; 5) filling recombinant bacillus subtilis plasmin freeze-dried powder obtained after vacuum freeze-drying on the recombinant bacillus subtilis plasmin purified liquid with the protection agent into a capsules, thereby obtaining the enteric capsules. By adopting the method, the bacillus subtilis plasmin freeze-dried powder which is highly purified can be obtained, and the purity of the powder can be 95% or higher. The processes for separating and purifying recombinant plasmin and preparing the enteric capsules are simple in procedure and easy in industrial amplification, and have great market development prospects and commercial values.