74results about How to "Low use value" patented technology

The invention relates to a solid-liquid enrichment separation method for tobacco sheet wastewater in a paper-making method. Nicotine and other components in the wastewater are enriched to a solid phase for separation, wherein the COD removal rate in single-stage separation can reach 70-80 percent; and then a biomedical forced aerobic method or anaerobic/aerobic method are adopted to treat, reuse or discharge the treated water, and the sludge solid can be reused. The solid-liquid enrichment separation method comprises the following steps: blocking slag by grilling; performing coagulation and enrichment reaction; settling; performing subsequent treatment clear water on an upper layer; concentrating sludge solid, and other steps. The solid-liquid enrichment separation method has the advantages that: the prepared calcium-magnesium compound coagulants are easily prepared and can be prepared into quality-grading formulations aiming at fluctuation of the wastewater; the obtained sludge solidobtained by separation is rich in nicotine and other components which can be subsequently extracted as active ingredients of biogenic pesticides; the extracted dry soil powder can be totally used as loading agents of powder pesticides; and special treatment facilities and equipment are unnecessarily used, and the investment and operating cost of biochemical facilities can be reduced simultaneously.

The present invention relates to a method for preparing sea cucumber glycoprotein by using a sea cucumber blanching solution. The method comprises that: a sea cucumber blanching solution is adopted as a raw material, and is subjected to treatments of reduced pressure condense, alcohol precipitation, drying to prepare into powder; the powder is subjected to treatments of alcohol leaching and desalination, and then is redissolved in purified water; the resulting solution is subjected to treatments of enzymolysis and centrifugation; the resulting supernatant is subjected to treatments of tube ultrafiltration, ultrafiltration and drying to obtain the sea cucumber glycoprotein product. The preparation method of the present invention has characteristics of low equipment investment, simple operation, short production period, high yield and low product cost. The prepared sea cucumber glycoprotein has good biological activity.

The invention provides a novel chain-throwing blowing and cleaning device for anode scrap electrolyte. The device comprises a roller type chain-throwing cleaning part, a fixed rack and a blowing part, wherein the roller type chain-throwing cleaning part is fixedly connected with the fixed rack; the blowing part is fixedly connected with the fixed rack. Due to the novel chain-throwing blowing and cleaning device for anode scrap electrolyte, the anode scrap electrolyte will be cleaned up, manual residue cleaning through an air pick in the later stage or manual surface blowing operation can be replaced, not only is labor intensity reduced, but also harm to the health of the body of a worker is reduced, running cost of the equipment is low, and production efficiency is greatly improved.

Low-sulfur heavy bunker fuel oil and a preparation method of same. The invention belongs to the technical field of heavy fuel oil. The low-sulfur heavy bunker fuel oil comprises, by weight, 40-65 parts of residual oil, 5-15 parts of catalytic oil slurry, 5-20 parts of styrene tar, 5-20 parts of ethylene tar, 5-20 parts of diesel oil, 0.2-1 part of an additive OP-10, and 0.1-0.5 parts of an additive AES. The preparation method includes: successively adding the styrene tar and diesel, the additive OP-10, the additive AES, the residual oil, and the catalytic oil slurry, and stirring the mixture at medium speed, and adding the ethylene tar and performing high-speed stirring to obtain the fuel oil. The invention solves the problems that the product is liable to generate flocs and to coke duringuse since the styrene tar cannot be uniformly blended with other oil products.

The invention provides a WEB dynamic adaptive defense system and defense method based on false response. Based on the concept of moving target defense, a plurality of false WEB servers capable of being dynamically transformed is constructed around a protected WEB server, false sensitive data, false applications, false vulnerabilities and the like are constructed on the false WEB servers, and cheating hackers attack the false WEB servers. When a known attack or a suspicious behavior is identified, the known attack or the suspicious behavior is introduced into the false WEB server, and an attacker enters the false environment and then executes a subsequent attack action in the false environment until the attack is finished, so that multiple attempt attacks of the attacker are effectively defended, and meanwhile, the method has a relatively good defending capability on an unknown WEB attack. Besides, by continuously observing attack behaviors in a false environment, WEB attack features can be automatically extracted, attack detection rules are dynamically and adaptively adjusted, and the dynamic adaptive capacity of a defense system is improved.

The invention relates to a polymethyl methacrylate simulated redwood composite material and a preparation method thereof. The material is a composite material prepared by using softwood as a substrate and introducing a methyl methacrylate monomer to be soaked into the softwood. The preparation method comprises the following steps of: (1) soaking the softwood in an alkali liquor to perform reflux degreasing; (2) taking out the softwood after the degreasing, refluxing the softwood to remove the alkali liquor, and drying the softwood; (3) in a vacuum state at the normal temperature, soaking the softwood in solution of the methyl methacrylate monomer dissolved with a dye for 0.5 to 10 hours; and (4) putting the softwood into a drying apparatus, and performing polymerization to obtain the polymethyl methacrylate simulated redwood composite material. The polymethyl methacrylate simulated redwood composite material prepared by the method improves the density of woods, reduces the water absorption, the swell-shrink characteristics and the sensitivity to climates of the woods, and improves the dimensional stability and the balance of mechanical properties; besides, the preparation method is simple to operate and has a low cost and high economic benefits.

The invention belongs to an application in the pharmaceutical field, in particular to the application of wintercherry fruit or calyx persistent calyx saponin in preparing medicines and health products for curing diabetes. In the invention, dry wintercherry fruit or calyx goes through the processes of reflux extraction, concentration, extraction, washing, drying and the like, thus obtaining a crude product of saponin. Through a D-101 type macroporous absorbent resin column, distilled water is adopted for elution, then ethanol solution is adopted for elution, finally the wintercherry fruit or calyx persistent calyx saponin is obtained after the processes of rotary evaporation and lyophilization, etc. The extraction process is simple and the cost is low, the source of materials is wide, adaptability thereof is strong and the materials are extremely easy to be planted manually in a large scale. The product of the invention has the functions of markedly lowering blood sugar level and strengthening immunity, therefore, the product can be applied as the medicine for curing patients suffering from diabetes and as health products for preventing diabetes and improving organism immunity.

The invention relates to a method for preparing nuclear medicine diagnostic reagent oxygen-18 water and a device thereof. The method comprises the steps of: utilizing an oxygen isotope water industrial rectifying separation device to obtain deuterium oxygen 18 doubly-labelled water as material; carrying out steps of electrolysis, purification and filtering to obtain high-purity deuterium and high-purity oxygen-18 gas; adopting a high-temperature platinum mesh to carry out catalyzing so as to lead the high-purity deuterium to react with the high-purity oxygen-18 gas at high temperature to generate deuterium water; and adopting the high-temperature platinum mesh to carry out catalyzing to lead the high-purity oxygen-18 gas to directly react with high-purity hydrogen to obtain the highly-purified oxygen-18 water adopted as the diagnostic reagent of nuclear medicine. Compared with the prior art, the invention which not only can make full use of the deuterium oxygen 18 doubly-labelled water to prepare the nuclear medicine diagnostic reagent oxygen-18 water and utilize by-product deuterium to prepare deuterium water but also can reduce process steps, enhance quality and yielding of oxygen-18 water of nuclear medicine and reduce product cost really has simple process and better effect.

The invention discloses a bamboo and wood double-layer floor. The bamboo and wood double-layer floor is simple in structure and convenient to manufacture, and consumption of adhesive can be reduced to a great extent. The bamboo and wood double-layer floor comprises an elongated face plate and a bottom plate. The elongated face plate is made of integral log, the bottom plate below the face plate is made of integral log, wood fibers of the face plate are parallel to long edges of the floor, wood fibers of the bottom plate are perpendicular or parallel to the long edges of the floor, the face plate and the bottom plate are adhered with each other by adhesive, and rabbets which are spliced with one another are arranged on the periphery of the bottom plate. The bamboo and wood double-layer floor is characterized in that grooves in rows are formed in the lower surface of the bottom plate or the upper surface of a bottom plate and face plate joint surface of the bottom plate and are perpendicular to the wood fibers of the bottom plate, elongated bamboo materials which are matched with the grooves are inlaid and adhered in the grooves, and the directions fibers of the bamboo materials are consistent with the length directions of the bamboo materials. The bamboo and wood double-layer floor has the advantages that the bamboo and wood double-layer floor is simple in manufacturing process, high in production efficiency, low in material and production cost and good in environmental friendliness and service performance, and laying and service requirements of places with diversified special requirements can be met.

The invention discloses a coking fly ash/coke powder blast furnace blowing synergy utilizing system and technology. A full-sealed suction discharging tank truck transports coke powder to inlets of powder collecting bins, outlets of the powder collecting bins communicate with one ends of bin pumps through conveying pipelines correspondingly, and the other ends of the bin pumps communicate with theconveying pipelines correspondingly; the conveying pipelines of the bin pumps are connected with the top of a buffer bin or the tops of multiple buffer bins through switching valves; outlets of the buffer bins communicate with one ends of feeders through frequency conversion type soft seal cinder valves correspondingly, and the other ends of the feeders communicate with mills; and the mills communicate with a blast furnace. The technology comprises the steps that fly ash/coke powder is transported into the powder collecting bins through the full-sealed suction discharging tank truck, the cokepowder is transported into the buffer bins form the bottoms of the powder collecting bins through the bin pumps, then is discharged into the feeders by the rotation cinder valves adjustable in speed,enters the mills to be reformed and then enters the blast furnace together with coal powder, and the coke powder transferring process is completed. The energy saving and environment protection effectis achieved.

The invention discloses a method for continuously fermenting to produce ethyl alcohol by using immobilized wine brewing yeast cells. The method is characterized in that small intestines of pigs are used as an immobilized carrier, and the immobilized wine brewing yeast cells are continuously fermented to produce the ethyl alcohol. The method has the advantages that the small intestines of the pigs are used as the immobilized material, so that the toxicity is avoided, the adsorbing effect is good, the continuous fermenting effect is realized, the fermenting time is shortened, and the fermenting rate is improved; the output of the ethyl alcohol is increased, and solid and liquid of a product are favorably separated.

The invention relates to a pulping system for producing paper products by recycling waste paper. The system comprises a mounting frame, a pulping device, a spraying device, a crushing device and a pushing mechanism, wherein the pulping device is installed at the bottom of the mounting frame, the spraying device is installed on the right side of the top of the mounting frame, a material inlet is formed in the left side of the top of the mounting frame, the pushing mechanism is arranged below the material inlet, the crushing device is installed on the right side of the middle of the mounting frame, a discharging pipe is connected between the pulping device and the crushing device, and the spraying device is located just above the crushing device. The pulping system of the invention can solvethe problems in the treatment after waste paper recovery in the prior art that in a waste paper pulping process, paper pulp is prepared after waste paper is not fully crushed, and the cellulose contained in the paper pulp in the pulping process cannot be fully decomposed when being decomposed again, so that the surface roughness of the produced recycled paper is overlarge, the recycled paper is easy to tear and difficult to form when meeting water so as to reduce the utilization value of the recycled paper..

The invention relates to the technical field of POS systems, and particularly discloses a chain retail POS system which comprises a POS management background, a POS middle platform, a front-end service system and a rear-end application system, the front-end service system and the rear-end application system both operate based on the POS middle platform, the POS middle platform is used for monitoring information and uploading the information to the POS management background, and the POS management background can download definitions, rules and parameters of the POS middle platform; and business logic is processed in a centralized mode through the POS middle platform, the terminals and channels are opened in a service arrangement mode, the capacity of sharing, adapting and rapidly responding to market requirements of core business is improved, meanwhile, the requirement of a front end is lowered, rapid adapting of multiple types of terminals is facilitated, and after a new offline file is generated every day through POS background service, old files are directly replaced, so that the problem that a large number of off-line files occupy disk space is effectively avoided, the requirement for computer performance is not high, the use cost is low, and the concurrency requirement for a headquarter server is reduced.

The invention aims to overcome the defects of high production cost, low byproduct gas yield and the like in the prior art, and provides a yellow phosphorus preparation process based on an oxygen thermal method. A feeding nozzle 3 is arranged at the top of an entrained-flow bed reactor, a phosphate ore feeder 1 is arranged at the middle-lower part of the furnace, a synthesis gas outlet 7 is formed in the middle-lower part of the furnace, a slag discharge port 6 is formed in the bottom of the furnace, and the interior of a hearth is divided into a gasification reaction zone 10 and a molten pool reaction zone 11 from top to bottom. The synthesis gas outlet 7 is connected with a cylinder body 8 with a water cooling wall; and the cylinder body is simultaneously provided with a water supply inlet 9 and a steam outlet 10. And a synthesis gas outlet 11 of the water-cooled wall cylinder is connected with a phosphate ore/silica preheater 12. Excessive coal and oxygen are subjected to partial gasification reaction to generate a large amount of heat and coke, the heat and the coke are used for reduction of phosphate ore, the generated yellow phosphorus sublimates into the synthesis gas, then the yellow phosphorus in the synthesis gas is separated and purified, and the byproduct high-quality synthesis gas can be used as a chemical raw material.