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768results about How to "Improve economic efficiency" patented technology

Process and device for processing liquid steel slag

The invention provides a process and device for processing liquid steel slag, belonging to the technical field of the metallurgical equipment and aiming at solving the problems of liquid steel slag granulation and liquid steel slag sensible heat recovery. The process for processing the liquid steel slag comprises the following steps: a, granulating the liquid steel slag by quenching gas; b, cooling the high-temperature liquid solid steel slag; c, recovering liquid steel slag sensible heat; and d, reusing cooling gas. The invention also provides a device for processing liquid steel slag. The invention is mainly characterized in that firstly, the liquid steel slag is granulated in a sealed granulating tank, the liquid steel slag is small and uniform, the pure Fe in the liquid steel slag can not be oxidized and the economic benefit of the liquid steel slag processing process is improved; secondly, the liquid solid steel slag is cooled in a sealed cooling tank, less cooling gas leaks, the dust pollution is reduced, and less cooling gas is supplemented; and thirdly, the inert gas is used as the cooling gas in the granulating tank and the cooling tank, and the cooling gas inversely exchanges heat with the liquid steel slag, thus the efficiency of exchanging heat between the liquid steel slag and the cooling gas is improved, the temperature of the cooling gas at the outlet is increased, and the liquid steel slag sensible heat is recovered.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1

Parking lot management system and parking lot management method thereof

The invention provides a parking lot management system and a parking lot management method thereof for a residential district. The parking lot management method includes steps of S01), license plate information collection; S02), license plate identification classification; S03), accessing judgment; S06), parking space information collection; S07), parking space information statistics; S08), parking space information prompt. The parking lot management system comprises a main control module, a license plate information collection module, a parking space information collection module and a free-parking-space prompt module, the license plate information collection module, the parking space information collection module and the free-parking-space information collection module are respectively connected with the main control module, the license plate information collection module collects license plate number information of vehicles in and out of a parking lot, the main control module identifies license plate classification, judges whether the vehicles are outside vehicles or not, comparatively analyzes whether the time period is for entering of the outside vehicles or not and whether free parking spaces are available or not and judges whether to allow the vehicles to enter the parking lot or not. By the parking lot management system and the parking lot management method thereof, problems that utilization rate of the parking lot is low and the parking lot idles while the outside vehicles have nowhere to park can be solved, and normal parking of ordinary vehicles in the residential district is unaffected.
Owner:GUANGXI NORMAL UNIV

Photovoltaic energy storage electric automobile charging station system and method for switching state of energy storage system

The invention discloses a photovoltaic energy storage electric automobile charging station system and a method for switching working state of an energy storage system. The photovoltaic energy storage electric automobile charging station system comprises a photovoltaic system, an energy storage system, a charging system, a DC(direct current)/AC (alternating current) inverter, an AC/DC rectifier and a DC/DC converter, wherein the photovoltaic system is connected to an alternating current power distribution network by virtue of the DC/AC inverter and is connected to the energy storage system by virtue of the DC/DC converter; the energy storage system is connected to the alternating current power distribution network by virtue of the DC/AC inverter and is connected to the charging system by virtue of the DC/DC converter; and the charging system is connected to the alternating current power distribution network by virtue of the AC/DC rectifier. The method provided by the invention has the advantages that uniform scheduling on the photovoltaic system and the energy storage system in the electric automobile charging station is realized, utilization rate of the charging station to solar energy in an area is improved, and impact to a power grid by centralized charging can be effectively buffered, thus power supply stability is guaranteed, grid discharging can be realized, peak shaving of the power grid can be participated, power quality is improved, and obvious economic benefit is achieved.
Owner:SHENZHEN POWER SUPPLY BUREAU +1

High-yield and high-efficiency cultivation technique of Zhenba purple-core sweet potato

InactiveCN102523889AMake the most of time and spaceImprove economic efficiencyClimate change adaptationGreenhouse cultivationHigh yieldingTransplanting
The invention relates to a high-yield and high-efficiency cultivation technique of Zhenba purple-core sweet potato, comprising the following step of: leading the purple sweet potato to adopt two-layer heat preservation seedlings growth such as a small tunnel and a mulching film, wherein the width of a seed bed is about 1.5m, and the length of the seed bed in each mu of field is 7m; digging ridged grooves with the depths of 15-30cm; paving 3cm of organic fertilizer on the surface of the bed to be mixed with earth; leading gaps among potato seeds to be 3cm; covering a layer of the organic fertilizer on the potato seeds; adopting heat preservation seedlings growth such as a layer of the mulching film and the tunnel after 3-5cm of the earth is recovered; and planting and transplanting seedlings with 4-5 leaves into land for growing field crops when the height of the seedlings is more than 15cm and the air temperature is stabilized at 13 DEG C. By way of the synthesis technique such as timely early transplanting, seedling management, water management, topdressing, trash cultivation, pest control and prevention and the like, the area, the space and the photo-thermal resource can be furthest used, and the high yield and high efficiency in unit area can be realized.
Owner:高义富

Method for intercropping and cultivating konjak by northern high-stem plant

InactiveCN101715683ABroaden accessImprove economic efficiencyPlant protectionSeed immunisationForest beltCorn field
The invention provides a method for intercropping and cultivating konjak by a northern high-stem plant, which is characterized by comprising the following steps: A, intercropping and cultivating the konjak in a forest land or a corn field, applying 1 to 2 tons of decomposed organic fertilizer for each mu, then spreading 100 jins of calcined lime over each mu to sterilize the soil, and turning over and flattening the field; B, sterilizing konjak seeds; C, adopting ridge culture and oblique culture to intercrop 3 to 5 rows of konjak at a konjak ridge height of 20 to 30 centimeters, a ridge surface width of 20 to 25 centimeters and a forest belt of 3 to 5 meters, or intercropping 1 to 2 rows of konjak in a corn row, and inclining the seeds for 45 degrees facing the sun; and D, performing grading seeding, wherein the planting density uses 6 to 8 times diameter of the konjak seed as a row space and 4 to 5 times diameter of the konjak seed as a plant space, and covers 15 to 20 centimeters of soil. By adopting the technical scheme of the invention, the increment amplitude of intercropping the konjak in the forest land is 3 to 7 times that of the primary seeds, the per mu yield reaches more than 1,500 kilograms, the utilization efficiency of the forest land is improved by over 20 percent, the economic benefit in each mu is increased by more than 2,000 yuan, and the utilization path of the forest land is effectively broadened.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI

MES (Manufacturing Execution System) dynamic workshop scheduling and manufacturing execution system

The invention discloses an MES (Manufacturing Execution System) dynamic workshop scheduling and manufacturing execution system. According to the system, a planning layer, a control layer and an MES are integrated on the basis of the MES, the production capability and the load are averaged under an existing production condition, the production period is shortened and articles being processed are reduced, so that the aim of improving the economic benefits is finally realized. The timeliness of information of the MES can meet the requirements of rapid change of production operation very well; the scientificity of enterprise production scheduling and a workshop operation informationalized level can be improved; meanwhile, the change of the market and the processing process can be rapidly reflected in time and the corresponding adjustment is carried out, so that the operation efficiency of the system is improved. On the basis, the workshop production scheduling is visually modeled and simulated by using Witness; a simulation model is established and the simulation analysis is carried out so as to carry out analogue simulation and data statistics on each scheme; the contrastive analysis is carried out on related data of each set of machinery equipment and each product and corresponding data before improvement so as to realize the optimization of workshop scheduling.
Owner:XIAN TECHNOLOGICAL UNIV

Low-cost magnesia converter lining patching material and preparation method thereof

The invention relates to the field of regeneration and utilization of waste refractory materials, particularly to a low-cost magnesia converter lining patching material and a preparation method thereof. The low-cost magnesia converter lining patching material is characterized in that waste refractory materials are taken as raw materials, and the patching material is formed by mixing the following components by weight parts: 80 to 95 parts of waste refractory materials, 8 to 20 parts of binding agent (asphalt), 0 to 10 parts of sintering aid (iron oxide red) and 0.1 to 5 parts of combustion improver (waste fuel oil); and the waste refractory materials are waste magnesia chrome bricks, waste magnesia carbon bricks or waste magnesia bricks. In the method for preparing the patching material, the waste refractory materials are proportionally mixed with asphalt and iron oxide red, and then 0.1 to 5 parts of combustion improver are added during the stirring process for uniform mixing. The invention has the benefits that the patching material and the preparation method thereof reduce the production cost of converter lining patching materials required for steel production, increase the economic benefits of steel enterprises, reduce the consumption of mineral resources, are energy-saving and environment-friendly and facilitate the sustainable development of enterprises and the nation.
Owner:鞍钢实业集团有限公司

A Selective Hydrogenation Process of C4 Stream with High Alkyne Content

The invention relates to a selective hydrogenation process for a C4 material flow with high concentration of alkyne. The selective hydrogenation process comprises the following steps of: enabling the C4 material flow with the high concentration of alkyne to pass through one or more fixed bed hydrogenation reactors (I) with circulation pipelines, carrying out a selective hydrogenation reaction on the C4 mixture with high concentration of alkyne under the action of a catalyst to remove the alkine and generate butadiene and butylene, enabling the reactor to pass through a terminal reactor (II) without the circulation pipeline, and further removing the residual alkyne from the C4 material flow with the low concentration of alkyne. By utilizing the selective hydrogenation process and the catalyst provided by the invention, the concentration of the treated alkyne of the C4 material flow is as high as 20-50wt%, the concentration of alkyne of the hydrogenated C4 material flow can be reduced to below 1.5wt%, and the hydrogenated C4 material flow can be taken as the raw material for a butadiene extract device. According to the selective hydrogenation process disclosed by the invention, the C4 material flow is fully utilized and the yield of the butadiene is increased.
Owner:CHINA PETROLEUM & CHEM CORP +1

Circulating water runway type shrimp aquaculture system and circulating water runway type shrimp aquaculture method

The invention discloses a circulating water runway type shrimp aquaculture system and a circulating water runway type shrimp aquaculture method based on suspended biological floc and external water treatment equipment. The aquaculture system is provided with a fluidized bed biological filter, a biological floc cultivation device and a runway type aquaculture pond, wherein the runway type aquaculture pond generates water flow in a fixed direction through a flow pushing impeller, so that shrimps can swim against the flow; the physique of the shrimps is exercised, and the resistance of the shrimps is enhanced; the water flow is also favorable for collection and discharging of aquaculture solid wastes in an inclined plate waste collector, so that the water environment of aquaculture water is further guaranteed; a suspended type three-dimensional biological field for the inhabit of the shrimps is hung at the aquaculture pond. Aquaculture water enters the intercommunicated fluidized bed biological filter through a circulating pump and can be recycled after being treated. The biological floc cultivation device prepares biological floc from shrimp feeds and aquaculture water and discharges the biological floc into the aquaculture pond to supply extra fresh baits to the shrimps.
Owner:SHANGHAI OCEAN UNIV

Process for preparing high-purity molecular distillation monoacylglycerol

The invention relates to a process for synthesizing high-purity molecular distillation monoacylglycerol. The process comprises the following steps of: (1) mixing glycerol and a catalyst A, vacuumizing, stirring for heating, adding hydrogenated oil added with a catalyst B into a reaction system in batches to perform ester exchange reaction, after the ester exchange reaction is finished, keeping temperature, adding phosphoric acid for neutralizing, cooling and standing a reactant for demixing, wherein an upper layer is a crude glyceride layer, a lower layer is materials which are not reacted completely and impurities generated in the reaction process; (2) dehydrating and degassing the crude glyceride layer by primary distillation; (3) performing secondary distillation on the product, and removing free fatty acid and excessive glycerol; and (4) performing third-level distillation on the product to obtain a distillment and a distillation remnant, wherein the distillment is the high-purity molecular distillation monoacylglycerol, and the distillation remnant is diglyceride and triglyceride. By the process, the content of total monoester in crude ester can be improved obviously, the abrasion of equipment in subsequent molecular distillation process is reduced, the energy consumption of distillation is reduced, and the economic benefit is improved obviously.
Owner:NANCHANG UNIV

Cultivation method of Cordyceps militaris

The invention belongs to the field of production of edible fungi and discloses a method for cultivating Cordyceps militaris by disposable snack boxes. The method includes preparing culture medium and nutrient solution thereof, preparing a culture vessel, charging materials and sterilizing, inoculating, allowing for germination and managing germination. The method is characterized in that the culture vessel is a disposable snack box with a cover, the cover and a box body are separable, mutually locking devices are arranged at the edge of the cover and the edge of the box body respectively, air cannot enter the box body after sterilization, and accordingly bacterial pollution can be prevented effectively. Steps of charging material and sterilizing include: charging materials such as rice and silkworm pupa powder into the box body, adding the nutrient solution, placing the box body in a pot, steaming to obtain nutrient rice, bagging the nutrient rice with a plastic bag, folding the bag for sterilization, and performing inoculating after cooling. The volume of the disposable snack box is one to three times that of a can, and accordingly production of Cordyceps militaris can be reduced greatly, and economic benefit can be increased. An opening of the disposable snack box is large, and accordingly operation, especially collecting, is facilitated. The method is applicable to everywhere in China.
Owner:镇江市食用菌研究所

Vacuum heat pump type distilling apparatus

The invention discloses a vacuum heat pump type distilling apparatus which comprises a program controller, an evaporating tank assembly, a condensing tank assembly, a distilled water tank assembly, a vacuum buffer tank assembly, a vacuum pump, an air inlet pipe of the vacuum pump, an air exhaust hole of the vacuum pump, an electrical bar, a compressor, a high-temperature condenser, a low-temperature evaporator, a compressor outlet pipeline, a compressor inlet pipeline, a connecting pipe and a throttling valve. In the invention, first, the vacuum pump is used for pumping the device into a vacuum state so that the boiling temperature of the water is lowered and the heat pump can meet the temperature requirement; then, the low-temperature evaporating pipe of the heat pump is used for absorbing the energy of high-temperature steam to heat the water; and meanwhile, after the heat of the high-temperature steam is absorbed, the high-temperature steam is condensed into distilled water, the cooling process of the high-temperature steam can not consume any tap water, the power can be saved by more than 80%, and the water can be saved by more than 90%. In order to solve the problem that the heat source is insufficient when the heat pump is just started, the electrical bar is used for heating the water to the specified temperature in the starting process.
Owner:凌建军

Method and device thereof for linearly cutting silicon slice

The invention discloses a method and a device thereof for linearly cutting a silicon slice. By repeatedly and sequentially winding a steel wire on two or four guide wheels provided with wire casings, a steel wire gauze is formed, and a monocrystalline silicon rod is processed by ground finish. By utilizing the principle that the diameter of the steel wire becomes smaller and smaller along with the abrasion in a cutting process, a method that the steel wire which is winded on the guide wheel is sequentially and gradually thickened when winded on the guide wheel is adopted, so that the monocrystalline silicon rod can be processed by ground finish; and to this end, the slotting pitches of the guide wheel are changed to be unequal, and the unequal slotting pitches are sequentially reduced along the length direction of the guide wheel from the beginning that the steel wire is winded on the guide wheel, so that the gradual thickening degree of the steel wire gauze can compensate the increased thickness of the cut silicon slice caused by the reduced diameter of the steel wire after abrasion, and the monocrystalline silicon rod is cut into hundreds of completely identical silicon slices by cutters time after time. Under the circumstance that the slotting length of the invention is identical with the existing slotting length of the guide wheel, the quantity of the cut silicon slices is increased correspondingly, thereby enabling the economic benefit to be outstanding.
Owner:SHANGHAI JINGMEI ELECTRONICS TECH CO LTD

Harmless comprehensive treatment process flow for municipal solid waste

InactiveCN102489489AImprove economic efficiencySolid waste disposalIntegrated processingControl system
The invention provides a harmless comprehensive treatment process flow for municipal solid waste. The flow is an equipment assembly line for daily treating 500 tons of the municipal solid waste. The equipment assembly line comprises 10 main systems and 72 procedures: a waste sorting system, a winnowing system, a fermentation system, a fertilization system, a methane purification system, a generation system, a heat supply system, a composite board manufacturing system, a visual monitoring system and an electric device integrated control system. The municipal solid waste is divided into organic matters and inorganic matters after entering into the flow. A lot of component boards for constructions are produced by the inorganic matters, and a lot of methane is produced by the organic matters after fermentation. The methane can be used for generating electricity, burning boilers and being filled in tanks for sales after being purified. The solid organic matters can be produced to be organic fertilizers. No air pollution exists. According to the harmless comprehensive treatment process flow for the municipal solid waste disclosed by the invention, the harmful waste is changed to be harmless and useful, and is recycled. The harmless comprehensive treatment process flow has important a meaning for energy conservation and emission reduction, worker employment, agricultural development and environmental conservation.
Owner:郑九洲
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