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1590results about How to "Improve economic efficiency" patented technology

Novel method for processing calx sodica sintered alumina by dry method

The invention discloses a processing method for sintering alumina by a novel dry soap lime, which comprises the following steps: (1) raw materials, i.e., broken bauxite, limestone, sodium carbonate and coal are sent to a ball mill to be milled until the oversize product of 100<#> is not lager than 5 percent, and raw meal is made into raw meal balls of 30-50mm; (2) clinker sintering: the raw meal of the step (1) is calcined in a vertical kiln at the temperature of 1150-1250 DEG C to prepare the clinker; (3) clinker leaching: the clinker is leached by the lotion of Bayer process, and then the solution is sent to a desilication groove; (4) decomposition: the desiliconized solution is combined with a Bayer solution, and then the mixture is put into a leaf filter and enters a decomposer to be decomposed by adding seed crystal; and (5) roasting: aluminum hydroxide is roasted into alumina at 950-1200 DEG C. The processing method has the beneficial effect that the water content of the raw meal is reduced to 10-15 percent, thus greatly reducing the specific heat consumption in the sintering process by little change and acquiring higher economic benefits.
Owner:CHONGQING BOSAI MINERALS GROUP

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

Shale gas well productivity evaluation and prediction method

The invention discloses a shale gas well productivity evaluation and prediction method. The method comprises the following steps: an expression of a differential equation of a single-phase seepage mathematical model is obtained; the differential equation is solved and represented by a pressure form to obtain a seepage velocity and output formula; a deliverability equation is determined through fitting production data; the derived output formula is arranged to obtain a shale gas horizontal well staged fracturing output formula; boundary pressure (pe) required to be known can be known from the shale gas output formula; and as shale gas has the influences of absorption and desorption, a deviation factor is required to be corrected to obtain formation pressure of a shale gas reservoir. The prediction method deduces the deliverability equation for a shale vertical well and a horizontal well according to the desorption and dispersion characteristics of the shale gas, so that a shale gas output evaluation method is built, the precise output prediction is obtained, and the economic efficiency is improved.
Owner:CHENGDU CHUANGYUAN OIL & GAS TECH DEV

Fracturing fluid for controlling extension of fracture and fracturing method

The invention relates to a fracturing fluid for controlling extension of a fracture and a fracturing method. The fracturing fluid is used as sand-carrying fluid. The viscosity of the fracturing fluid is below 10mPa.s. The fluid contains suspended-sand fibers which may be hydrophilic high-strength organic fibers or inorganic fibers, but do not contain cross-linking agent. The suspended-sand fibers in the fracturing fluid form a three-dimensional network structure to suspend a propping agent, and therefore can replace thickening agent to reduce the viscosity of the fracturing fluid. The fracturing method comprises the step of injecting the fracturing fluid carrying the propping agent into a stratum under a condition of low discharge volume so as to effectively control the extension of the fracture. The fracturing fluid and the fracturing method are very suitable for fracture stimulation of a thin bed reservoir and can meet the fracturing requirements of thin bed reservoirs and oil and gas reservoirs with bottom water and inter-stratum oil and gas reservoirs.
Owner:PETROCHINA CO LTD +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

Method for preparing chitosan/organo montmorillonite nanometer composite material

The invention relates to a method for preparing a chitosan / organo montmorillonite nanometer composite material, belonging to the technical field of new technologies and new materials. The method comprises the following steps: organo montmorillonite is added according to a certain proportion to a chitosan solution with a mass percentage of 0.05 percent to 0.4 percent and a pH value of 4.5 to 5.5; the organo montmorillonite and the chitosan solution are stirred and react at 50 DEG C to 60 DEG C for 10 hours to 16 hours; the reacted solution is evaporated under a water-bath condition of 80 DEG C to 95 DEG C until no obvious liquid exists; the obtained solid is deuibuzed, dispersed, filtered and washed to be neutral; and the obtained solid is dried, ground and screened at 80 DEG C to 95 DEG C so as to obtain the chitosan / organo montmorillonite nanometer composite material. The invention has the advantages of little water consumption and wild reaction condition, and the prepared chitosan / organo montmorillonite nanometer composite material is easy to recycle after being used as an adsorbent, has no secondary pollution, is beneficial to environmental protection and can be applied in fields, such as water treatment, preservatives, antibacterial agents, and the like.
Owner:DALIAN UNIV OF TECH

Multi-angle synchronous efficient grinding equipment for automobile brake disc

ActiveCN112025432AEffective positioningSynchronous and efficient grinding equipment can be positioned accurately and efficientlyRevolution surface grinding machinesGrinding drivesEngineeringSurface grinding
The invention relates to the technical field of automobile brake disc grinding machining, in particular to multi-angle synchronous efficient grinding equipment for an automobile brake disc. The equipment further comprises a machining platform, a clamping rotating assembly, a top surface grinding assembly and a side wall chamfering and grinding assembly, wherein the clamping rotating assembly comprises a mounting disc, a transmission disc, a positioning disc, a clamping jaw and a pressing mechanism; the top surface grinding assembly comprises a first lifting mechanism, a first horizontal displacement mechanism and a top end horizontal grinding mechanism, and the top end horizontal grinding mechanism comprises a horizontal grinding disc capable of grinding the top surface of the automobile brake disc; and the side wall chamfering and grinding assembly comprises a second lifting mechanism, a second horizontal displacement mechanism, an angle adjusting mechanism and a side wall chamferingand grinding mechanism, and the side wall chamfering and grinding mechanism comprises a side wall grinding disc. The equipment shown can precisely and efficiently position and clamp the automobile brake disc, and the surface, the side wall and the edge of the brake disc are synchronously and accurately ground, such that the working efficiency is greatly improved, and repositioning is avoided.
Owner:浙江杭万汽车零部件实业有限公司

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

Wave energy and ocean current energy integrated generator and power generation method thereof

The invention provides a wave energy and ocean current energy integrated generator comprising an undersea guide caisson, a water turbine, a vibrating floater, a round void compartment, a fixing rack, a hydraulic integrated generating module, and three hydraulic cylinders. The water turbine is disposed in the undersea guide caisson. The vibrating floater disposed outside a transmission shaft of the water turbine floats on the water surface. The round void compartment is mounted on the transmission shaft and arranged above the vibrating floater. The fixing rack is arranged on the outer surface of the round void compartment. The hydraulic integrated generating module is disposed in the fixing rack. The hydraulic cylinders are disposed between the vibrating floater and the fixing rack and convert ocean current energy and wave energy from sea water into electric energy through the water turbine and the vibrating floater, respectively. The wave energy and ocean current energy integrated generator is capable of extracting wave energy and ocean current energy at the same time, the generating process is continual and controllable, the generator is high in operational reliability, output electricity quality is high, and economic efficiency is good; in addition, the invention further provides a power generation method using the wave energy and ocean current energy integrated generator.
Owner:DALIAN MARITIME UNIVERSITY

Producing technique of films for aluminized anti-fake wrapping paper

The invention discloses a producing technique of films for aluminized anti-fake wrapping paper, sequentially comprising the following steps of: paint coating, holographic nickel plate stamping, aluminizing, rewinding, combining, peeling, and the like. The producing technique improves the transferring and temperature-proof performances of films, and polyester films can be reused for 3-5 times, thereby improving the economic benefit and achieving the energy-saving and emission-reducing effects. In addition, corresponding holographic patterns can be made based on requirements to play an anti-fake role.
Owner:ZHEJIANG YAXIN PAPER IND

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

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

Electrical equipment operation condition classification method

The invention relates to an electrical equipment operation condition classification method, which comprises the steps of building training data of a mean clustering model; pre-processing the training data, deleting invalid data and carrying out normalization processing; adopting a K-means++ algorithm for determining an initial clustering center; determining upper and lower limitations of clustering classification categories; circularly realizing a clustering process of multiple categories; carrying out evaluation analysis on a clustering result, and determining an optimal clustering category number K value; selecting an optimal K value model as an optimal condition classification result, so that the efficiency and the accuracy are improved.
Owner:SHANDONG LUNENG SOFTWARE TECH

Method for keeping balance of sodium-magnesium-water system in technique for extracting nickel from lateritic nickel ore by wet process

The invention discloses a method for keeping balance of a sodium-magnesium-water system in a technique for extracting nickel from lateritic nickel ore by a wet process, which is characterized by comprising the following steps: (a) dissolving nickelous hydroxide, which is obtained by carrying out alkali nickel precipitation on nickel sulfate leach liquor, in sulfuric acid; (b) extracting the nickel sulfate solution obtained in the step (a) with a P204 extractant to remove impurities, wherein P204 sodium soap is converted into nickel soap before removing the impurities; (c) extracting the nickel sulfate solution obtained in the step (b) with a P507 extractant to remove cobalt and magnesium, wherein P507 sodium soap is converted into nickel soap before removing the cobalt and magnesium; and (d) evaporating the anolyte, which is obtained by electrolyzing the nickel sulfate solution obtained in the step (c), thereby removing part of moisture. By using the method provided by the invention, the sodium, magnesium and water are balanced in the technique for extracting nickel from lateritic nickel ore by a wet process, so that the production can be carried out continuously, thereby increasing the recovery rate of nickel, lowering the treatment cost and having obvious economic efficiency.
Owner:广西银亿新材料有限公司

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

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

Method for preparing organic fertilizer by using aminonitrile waste liquid

The invention provides a method for preparing an organic fertilizer by utilizing amino-nitrile waste liquor, which comprises the steps: catalyst and dispersant are added in the associated amino-nitrile waste liquor generated in the preparation of iminodiacetonitrile, aminoacetonitrile, ammonium dinitrile and EDTW, and mixed for reaction at the temperature of 30 to 150 DEG C and the pressure of 0 to 1.0MPa, so as to obtain base fertilizer which is added with biological strains for fermentation of 7 to 15 days at the temperature of 10 to 60 DEG C after nutrient allocation; and then hydrolysis is carried out to the base fertilizer to obtain a raw fertilizer which is carried out with nutrient allocation, pelleting and drying to be prepared into the organic fertilizer. The method can reduce the treatment cost, effectively utilizes the resources of the water liquor, and prepare the organic fertilizer by utilizing the amino-nitrile waste liquor.
Owner:四川省天然气化工研究院

Method for preparing nitrogen-doped porous carbon from heavy organic component in coal liquefaction residue

The invention provides a method for preparing nitrogen-doped porous carbon from a heavy organic component in a coal liquefaction residue, which belongs to the field of preparation technology for carbon materials. The method comprises the following steps: subjecting the coal liquefaction residue to solvent extraction so as to obtain a heavy organic component; mixing the obtained component with a nitrogen source and carrying out preoxidation treatment so as to obtain a nitrogen-rich carbon source; and with the nitrogen-rich carbon source as a raw material, preparing the nitrogen-containing porous carbon with a high specific area by respectively using physical activation, chemical activation or a template method. The method provided by the invention has the characteristics of simple process, a wide selection range of the nitrogen source and the like and provides a novel approach for high-added value utilization of the coal liquefaction residue. The prepared nitrogen-doped porous carbon can be extensively used in fields like electrode materials, adsorption materials and catalyst carriers.
Owner:DALIAN UNIV OF TECH

Oil shale retorting process reclaiming method

The invention discloses an oil forming shale retorting technique recovery method. Cyclone oil trapping, indirect cooling, heavy oil washing, electricity trapping tar, and other washing techniques and related equipment are introduced into the oil recovery process of the product of retorting. Firstly, shale oil and dust are separated from the product of retorting by direct washing via a gas collecting groove; after oil drips and dust are removed by a cyclone trapping tower, the product of retorting enters into an indirect cooling tower; after further cooling, a majority of shale oil and dust are condensed off. The gas coming out from the indirect cooling tower enters into an oil washing tower, the light oil in the retorting gas can be collected by the shale oil which is self-produced by the technique. Oil steam existing in gas form is collected in the electricity trapping tar tower. Finally, the retorting gas is sent into the system by a gas fan for recycling, the washing water circulates in closed loop in the system. The invention can improve the oil recovery rate by 10-15 percentage points; reduces the emission of pollutants; improves the automation degree of the overall operation; and reduces the contents of impurities in the oil.
Owner:FUSHUN MINING IND GROUP

Variable weight combined forecasting method-based electric power load short-term forecasting method

InactiveCN107590562AReduce schedule pressureImprove the level of load forecastingMathematical modelsForecastingLocal optimumLoad forecasting
The present invention discloses a variable weight combined forecasting method-based electric power load short-term forecasting method. According to the present invention, aiming at the disadvantages that a conventional single load forecasting model and a fixed weight combined forecasting model are low in forecasting accuracy, and by comprehensively considering the time correlation of the electricpower loads and the influence of other related factors on the electric power loads, and combining various electric power load forecasting models, a variable weight combined forecasting model of the electric power load short-term forecasting is established. Meanwhile, aiming at the disadvantage that a particle swarm optimization variable weight parameter combined forecasting method traps in a localoptimal solution easily, a parameter dynamic adjusting particle swarm optimization algorithm is established, thereby realizing the optimization solution of the weight parameters of the variable weight combined forecasting model, and finally realizing the short-term forecasting of the electric power loads. The combined forecasting model of the present invention is better than a conventional load forecasting method, a fixed weight combined forecasting method and a particle swarm optimization variable weight parameter combined forecasting method, and has the higher forecasting accuracy.
Owner:XI AN JIAOTONG UNIV

Spraying, dyeing and drying device for textile fabric

The invention discloses a spraying, dyeing and drying device for textile fabric. The device comprises a tank body, supporting vertical plates which are mutually symmetric are fixedly connected to twosides of the bottom of the tank body, and a bottom supporting plate is fixedly connected to the bottoms of the two supporting vertical plates; a dye stirring device is fixedly connected to the left side of the top of the bottom supporting plate, a liquid pumping pump placement tank is fixedly connected between the surface of the left side of the dye stirring device and the surfaces of the right sides of the supporting vertical plates, and a liquid pumping pump is fixedly connected to the bottom of the inner wall of the liquid pumping pump placement tank; a liquid pumping pipe is communicated with the right side of the liquid pumping pump. The invention relates to the technical field of textile machinery equipment. According to the spraying, dyeing and drying device for the textile fabric,the problems of high dyeing cost, environmental pollution, low use ratio and low cloth dyeing effect of an existing drying device for the textile fabric are solved, the use efficiency of dye is effectively improved, the device is safe and environmentally friendly, the pollution to the environment is lowered, manual operation is not needed, the labor intensity is lowered, and the economic efficiency is improved.
Owner:HUZHOU BOREN TEXTILES

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

Injection device and method for uniformly lubricating roll gap of rolling mill

The invention discloses an injection device for uniformly lubricating a roll gap of a rolling mill. The injection device comprises a direct injection emulsion spraying rack (101) arranged on the upper surface of strip steel (104) and at an inlet of a rolling mill rack, a direct injection emulsion spraying rack (102) arranged on the lower surface of the strip steel and at the inlet of the rolling mill rack and a direct injection emulsion spraying rack (103) arranged on the lower surface of the strip steel (104) and at the inlet of the rolling rack. The invention also discloses an injection method comprising the following steps of: 1, determining the distance from a nozzle in the spraying rack (103) to a centerline of a roller (105) and the distance from the nozzle in the spraying rack (103) to a rolling centerline; 2, determining the angle dimension between the nozzle and the horizontal plane; and 3, determining the injection flow of each spraying rack. By adopting the injection deviceand the injection method, the problem of easily dripping and splashing when the emulsion flow is excessive is solved; ample lubrication in a lower roll gap and sufficient oil film thickness are also realized; and the uniformity of lubricating oil film thicknesses of the upper and the lower roll gaps are simultaneously guaranteed.
Owner:BAOSHAN IRON & STEEL CO LTD

Construction method of interlocking pile for soft soil and soil layer with obstacle

The invention relates to a method for constructing a deep foundation, in particular to a method for constructing an occlusive in soft soil and a soil layer with a barrier, comprising the following steps of leveling a site, measuring and arranging a pile, constructing a concrete guide wall, constructing a first pile and constructing a second pile, wherein, the first pile and the second pile are occlusive and are arranged in a spacing way, the first pile is cut at the same time of the construction and pore formation of the second pile, and the pore forming techniques of the first pile and the second pile constructions adopt the hard cutting techniques. The method adopts the hard cutting technique, saves the barrier removing and backfilling processes before the pile formation, improves the efficiency, shortens the time limit for a project, overcomes the prejudice that the second pile should be constructed before the first pile prehardens, avoids the potential risk that the pile is formed completely by depending on the retarder effect, and widens the applicable range of the occlusive pile technique. Meanwhile, the occlusive pile constructed by the method has good fending and water stopping effects.
Owner:NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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