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836results about How to "Solve the problem of energy consumption" patented technology

Processing method for biomass solid molding fuel

InactiveCN101555429AImprove processing capacityImprove market competitivenessBiofuelsSolid fuelsBiomassCrop
The invention discloses a processing method for biomass solid molding fuel, which pertains to the technical field of solid fuel and aims at solving problem of comprehensive use of energy and biomass energy in rural areas. The technical proposal is as follows: biomass energy such as crop straws, shrub forest, forestry residues and the like are used as raw materials, and the secondary crushing technique and the mixed technique combining continuous feeding with adjustable feeding are adopted, therefore, two types of solid fuels, namely, block-type and granular fuels, can be produced. The technical proposal comprises three stages namely, pre-treatment of raw materials, solid molding and auxiliary assorting, and the specific working procedures comprise raw material cracking, drying, conveying, mixing, feeding, molding, cutting, cooling and measuring and packaging and adding a compulsory ventilating dust-removing system during the whole process. The processing method for biomass solid molding fuel solves the problem of diversification of biomass raw materials, and the biomass solid fuel production line constructed by adopting the processing method realizes the industrial continuous and stable production, solves the problems of high energy consumption and low production efficiency in the existing small workshop-style production, and is also beneficial to solving the rural energy problem and improving the rural environment.
Owner:ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI

Semi-automill ball-milling type ore grinding system and its control system

A semi-automatic grinder-ball grinder system for grinding ore is composed of a vibration feeder, a semi-automatic grinder with variable-speed driver and load monitor, a vibration sieve, a crusher, a sludge pump, cyclone unit with concentration, flow and granularity detections, and a ball grinder with variable-speed driver. Its control method is also disclosed.
Owner:CHINA ENFI ENGINEERING CORPORATION

Synchronous displacement adjustment type variable-stiffness joint driver and adjustment method for robot joint stiffness

The invention discloses a synchronous displacement adjustment type variable-stiffness joint driver. The synchronous displacement adjustment type variable-stiffness joint driver comprises a base, a swing arm position control assembly, a variable-stiffness adjustment assembly and an angular deviation measurement assembly, and is characterized in that the swing arm position control assembly is used for moving a swing arm to a specified equilibrium position point; the variable-stiffness adjustment assembly is used for changing the stiffness value of the driver according to the requirement of an actual task; the angular deviation measurement assembly is used for measuring and acquiring angular deviations for subsequent data processing and real-time stiffness control. The synchronous displacement adjustment type variable-stiffness joint driver is used for the variable-stiffness control of a robot joint, and can realize the flexibility of a driving system in terms of control without adding sensors, and thereby human safety is improved in the process of human-machine interaction. In addition, because of the special structural design, the energy consumption of a robot can be reduced, the joint structure is more compact, and good shock resistance and flexible dynamic characteristic lay a solid foundation for the movement of the robot in complex environments.
Owner:BEIHANG UNIV

Method for realizing energy-saving storing of hybrid main storage

The invention discloses a method for realizing energy-saving storing of a hybrid main storage. The method comprises the following steps: constructing the hybrid main storage taking a phase change storage as a main storage and a dynamic random storage as a buffer storage, designing a read-write policy adapting to the structure of the main storage, and reading and writing data in a disc and the phase change storage according to the read-write policy. The invention ensures that the structure of the original main storage is improved, and fully utilizes the advantages of high capacity and low power consumption of the phase change storage and the characteristic of low time delay of the dynamic random storage, so that the hybrid main storage acquires higher capacity on the premise that the power consumption and the time delay are not increased, thereby reducing the times of accessing the disc and realizing energy saving in storing.
Owner:ZHEJIANG UNIV

Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium

The invention relates to a method for extracting vanadium from vanadium-containing steel slag by using a highly-alkaline sodium hydroxide medium, belonging to the technical field of metallurgy. The technical scheme comprises the following steps: adding steel slag, water and NaOH into a reactor together, wherein the mass concentration of the NaOH solution is 65-90%; decomposing and leaching under atmospheric pressure, and diluting the obtained slurry with a diluter to obtain a slurry mixture; and separating the slurry mixture by filtering at constant temperature, and washing the slag with a washing solution to obtain tailings and a vanadium-containing water solution. The method provided by the invention can be implemented under atmospheric pressure at low temperature (greatly lower than the roasting temperature in the traditional pyrogenic process), and is easy to operate and safe; and the extraction rate of vanadium is greatly higher than that of the existing vanadium recovery technique based on the pyrogenic process and wet process, the one-time recovery rate of vanadium is 85-90%, and the total content of vanadium in the tailings is 0.3-0.6 wt%. The invention solves the problem that vanadium in the vanadium-containing steel slag can not be easily recovered, and has the advantages of high recovery rate of vanadium, low production cost, favorable economic benefit and environmental benefit, and the like.
Owner:承德承钢柱宇钒钛有限公司

Method for directly preparing gamma-valerolactone from acetylpropionic acid and aminic acid

The invention discloses a method for preparing GAMMA-valerolactone from levulinic acid and formic acid, which is characterized in that the levulinic acid is in situ reduced at 100-200 DEG C in the presence of ruthenium catalyst and formic acid contained in a system as reducer, and distillation is carried out to obtain mixture containing the product GAMMA valerolactone and used catalyst; and mother liquor containing the used catalyst and raw material are mixed to realize circulation of the catalyst, thereby greatly improving environmental friendliness. The method avoids the energy source consumption during valerolactone purification process, avoids hydrogen source acquired from the system exterior, and improves the economy and security of a production system, with the advantages of simple operation process. The formic acid is decomposed to generate large amount of carbon dioxide besides hydrogen, which is convenient for collection and utilization.
Owner:UNIV OF SCI & TECH OF CHINA

Textile dyeing method

The invention relates to a method for dyeing textile materials and products thereof, and belongs to the field of textile printing and dyeing processing. In the method, prepared dye solution is subjected to ultrasonic atomization to form dye solution microbeads, and the dye solution microbeads directionally infiltrate the textile under the action of certain pressure and an electric field so as to complete the dyeing process. Due to the adoption of the technical scheme, dye solution atomized microbeads prepared from the dye solution through a high-frequency ultrasonic atomizer have smaller grain size, a small dispersion range on the textile and more fine and smooth dyeing effect; the dye solution atomized microbeads enter fibers more easily under the action of the air pressure and the electric field, and have better dyeing effect; and the atomized microbeads carry less solution, the utilization rate of the dye is high, water can be saved and the environmental pollution is lightened. The dyeing method has a wide application range, low energy consumption and light pollution, and is suitable for small-batch and multi-variety printing technology development direction.
Owner:WUHAN TEXTILE UNIV

Environmentally-friendly paper making and pulping technique and system with high yield

The application of the invention provides an environmentally-friendly paper making and pulping technique with high yield, which comprises a raw material preprocessing stage, a physical fibrillation impregnating processing stage, an impregnating, steaming and bleaching three-section integrated pulping stage and a thickening and dewatering processing stage. An environmentally-friendly paper making and pulping system with high yield realizing the pulping technique comprises a stock cutter, a hammering and fibrillation screening dust remover, a washing dust remover, dewatering conveying equipment, a spiral steaming conveyor, a crashing, extruding and impregnating machine, a stirring and impregnating cabin, a pump pipe and a discharge pipe of a high-enriched steaming, bleaching and pulping all-in-one machine, wherein the pump pipe is connected to the high-enriched steaming bleaching pulping all-in-one machine; the discharge pipe of the high-enriched steaming, bleaching and pulping all-in-one machine is connected to a pulp cabin; the pump pipe of the pulp cabin is connected with a thickening and dewatering machine; the thickening and dewatering machine is output to the high-enriched pulping machine; the output of the high-enriched pulping machine is connected with a screening purifier and a thickening and squeezing machine in sequence. In the invention, the problems of high pollution, high energy consumption, serious shortage of paper making raw material and the like in present pulping and paper making industry can be solved fundamentally; rich plant fiber in the nature can be used, and the technical purposes of efficient bleaching, high yield, no black liquor and low energy consumption can be realized.
Owner:李刚荣 +1

Multi-objective real-time optimization control method for sewage treatment process

In allusion to the characteristics that in a sewage treatment process, the effluent water quality cannot reach the standard, the energy consumption is relatively high and the like, the invention provides a multi-objective real-time optimization control method for the sewage treatment process, by which optimization control over concentrations of dissolved oxygen SO and nitrate nitrogen SNO are achieved in the sewage treatment process. According to the optimization control method, an established energy consumption model and an established effluent water quality model, which are based on radial basis functions, are used as optimized objective functions, the optimized objective functions are treated via a multi-objective particle swarm algorithm to obtain optimized set values of the dissolved oxygen SO and the nitrate nitrogen SNO, and tracking control is performed on the optimized set values of the dissolved oxygen SO and the nitrate nitrogen SNO through a fuzzy neural network. According to the optimization control method, the problem of multi-objective real-time optimization control over the sewage treatment process is solved, the energy consumption is reduced on the basis that the effluent water quality is ensured, and high-efficiency and stable operation of a sewage treatment plant is promoted.
Owner:BEIJING UNIV OF TECH

Service program call method, service program call system and intelligent equipment thereof

The invention discloses a service program call method, a service program call system and intelligent equipment. The service program call method includes receiving a call request for calling a corresponding service program from an application program, judging whether the service program is defined as remote call or not, if so, then calling the service program from a remote end, and if not, then calling the service program locally. The service program call method and the service program call system effectively solve the technical problem that the intelligent equipment in the prior art has over high energy consumption caused by a great quantity of complex computing of the service program and further reduce energy consumption of the intelligent equipment.
Owner:HUAWEI TECH CO LTD

Overhead line intelligent fault positioning processing system and method thereof

The invention discloses an overhead line intelligent fault positioning processing system and a method thereof. The system mainly comprises a fault indicator, a gatherer, a voltage transformer and a monitoring management platform. An ad-hoc network is formed through the monitoring management platform, the gatherer, the voltage transformer and the fault indicator for data communication and transmission. Through a wireless ad-hoc networking technology, the use of a wireless network of a service provider is unnecessary, and restrictions of a service provider network are eliminated, such that the operation cost is saved, and data security is ensured; at the same time, faults such as single-phase grounding and the like are determined through combination with an expert analysis unit, system functions are enriched, and the accuracy in determining a single-phase grounding fault is substantially improved; and besides, the fault indicator as a major part employs an induction power-drawing technology, the problem of depletion of electric energy does not have to be considered, installation is finished in one step, replacement is unnecessary, the practicality is enhanced, at the same time, since an energy consumption problem is solved, the system provided by the invention can fully exhibit more effects, and the functions are increased.
Owner:刘骐畅

Multistage efficient ozone air floatation integrated device

The invention provides a multistage efficient ozone air floatation integrated device. A dissolved air floatation zone and an ozone oxidation zone are arranged reasonably so that dissolved air floatation zone and ozone oxidation are vertically combined in a column and multistage oxidization is realized; solid-liquid separation of insoluble floc particles and water is completed by virtue of dissolved air floatation, and then decolorization, deodorization, organic matter removal and sterilization are realized by virtue of ozone oxidization. The multistage efficient ozone air floatation integrated device is used for performing air floatation treatment and multistage oxidization on treated water; as a result, the shortcoming of low utilization rate of ozone is overcome, the minimization of energy consumption is realized, the utilization rate of ozone is greatly increased and the effect of sewage deep treatment is effectively guaranteed.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +2

Preparation method of TiBw/Ti-6Al-4V composite bar adopting quasi-continuous reticular structure

ActiveCN104263984AAvoid the problem of difficult deformationHigh densityTi 6al 4vMaterials science
The invention relates to a preparation method of a TiBw / Ti-6Al-4V composite bar adopting a quasi-continuous reticular structure and solves problems that existing Ti-6Al-4V composites are harsh in technological condition, high in equipment requirement, low in production efficiency, difficult to produce on a large scale and the like. The method comprises steps as follows: low-energy ball milling and mixing are performed on spherical Ti-6Al-4V powder and TiB2 powder firstly; then TiB2 / Ti-6Al-4V mixed powder is placed in a metal sheath for cold press molding, and vacuum degassing and sheath sealing welding are performed to obtain an extrusion billet; finally, short-time pre-sintering is performed on the obtained extrusion billet, and hot extrusion deformation is performed on the pre-sintered extrusion billet to obtain a required material. The method can be applied to preparation of a TiBw / Ti-6Al-4V composite adopting the quasi-continuous reticular structure.
Owner:HARBIN INST OF TECH AT WEIHAI

Method of preparing methanol by sewage treatment and carbon dioxide reduction

The invention provides a method of preparing methanol by sewage treatment and carbon dioxide reduction by means of a microbial electrolytic tank. The method comprises the following steps: after removing oxygen in organic sewage, injecting the organic sewage into the microbial electrolytic tank as a nutritional source for growing anode electrogenesis microorganisms which disassimilate organic matters in sewage to generate CO2, H+ and electrons; under the effect of an electronic assistant and cathode biocatalyst, reducing the generated H+ and electrons as well as CO2 on the surface of the cathode to methanol. The method provided by the invention is free from expensive catalysts, low in cost and low in energy consumption, and the speed of treating the organic sewage and generating methanol by reducing carbon dioxide is relatively high, so that the problems that conventional organic sewage bio-treatment is high in energy consumption and conventional electrocatalytic reduction of carbon dioxide to prepare methanol is high in energy consumption and low in efficiency of a cathode catalyst are solved, thereby providing a novel path to resourceful utilization of the organic sewage and carbon dioxide. The method is of important meanings to energy conservation and emission reduction and environmental management.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Banded wireless sensor network data routing method

The invention discloses a banded wireless sensor network data routing method for distribution network monitoring. Aiming at the characteristics of dense nodes, large scale, large quantity and high real-time requirement of monitoring of a distribution network, a multi-priority fast directional routing algorithm based on multi priority based on gradient. According to the method, for different data, a multi-priority service strategy is employed and a power function mechanism is introduced at the same time to select an optimal next hop routing node, and both the priority of a message and the load balance of a network are considered. The delay of transmitting real-time data is effectively reduced, and good energy effectiveness is provided for the network. The method is more suitable for a massively deployed wireless sensor network (WSN) with banded topology and intensive real-time data collection.
Owner:GUANGDONG UNIV OF TECH

Distribution network topology check and maintenance method

The invention discloses a distribution network topology check and maintenance method. The network comprises the steps that data related to a distribution network based on an electricity information collecting system are acquired; the distribution transformer outlet voltage is calculated when the influence of three-phase load unbalance is not considered; the correlation coefficient of the voltage curve of a powered transformer area under the same 10kV line is calculated, and the distribution network topology is checked; according to the topology check result, the correlation coefficient of the transformer area and the curve of the bus voltage of another substation is calculated to determine the correct substation to which the transformer area belongs; the correlation coefficient of the transformer area and the voltage curves of all 10kV outlet transformer areas is calculated to determine the correct 10kV line to which the transformer area belongs; and according to the GIS (Geographic Information System) information of the distribution network, possible misjudgment is corrected, and the maintenance of the distribution network topology result is completed. According to the invention, the problem of check result deviation caused by three-phase voltage unbalance of a distribution transformer in the prior art is solved, and the problem that a traditional manual mode is time-consuming and labor-consuming is solved.
Owner:STATE GRID CORP OF CHINA +1

Preparation method of large-area reduced graphene oxide membrane

The invention relates to a method for preparing a large-area reduced graphene oxide membrane. The method comprises the preparation steps that graphite powder serves as the raw material to prepare a graphene oxide suspension; the graphene oxide suspension is uniformly dispersed on the surface of a substrate in a spray coating or blade coating mode, and a graphene oxide membrane is prepared; the graphene oxide membrane is subjected to reduction treatment under the hot rolling condition, and the reduced graphene oxide membrane is obtained. According to the method for preparing the large-area reduced graphene oxide membrane, rapid heat treatment is conducted under the hot rolling condition, and therefore continuous preparation of the large-area reduced graphene oxide membrane is achieved. The method is convenient to operate, the process is simple and flexible, the production cost of the reduced graphene oxide membrane is greatly reduced, the production efficiency is improved, and the method is suitable for industrial large-scale production.
Owner:王祉豫

Sorting device and method for aerating cyclonic micro-bubble flotation column

The invention relates to a sorting device and method for an aerating cyclonic micro-bubble flotation column. The device comprises a foam enriching chamber, a foam ore concentrate collecting tank which is arranged on the upper part of the foam enriching chamber, and a shower pipe which is arranged on the top of the foam ore concentrate collecting tank, wherein the cyclonic micro-bubble flotation column is arranged on the lower part of the foam enriching chamber; an aerating sorting chamber is arranged between the foam enriching chamber and the cyclonic micro-bubble flotation column; a conical net is arranged in the aerating sorting chamber; and a plurality of air inlets which are vertical to the conical net side are uniformly distributed on the outer wall of the aerating sorting chamber. By arranging the aerating sorting chamber between the foam enriching chamber and column sorting chamber of the cyclonic micro-bubble flotation column, the high-concentration aerating floatation for theupper easily-floating mine, the middle-concentration column floatation for the middle floatable mine and the pipe-flow turbulence mineralization and cyclonic low-concentration flotation for the difficulty-floating mine are formed. By using the device, the gradient optimizing sorting of earlier aerating flotation for high-concentration easily-floating mine and later cyclonic flotation for difficulty-floating mine are realized, the processing capacity of the flotation column is greatly increased, the chemical consumption is reduced, and the contradiction between the sorting efficiency and the energy consumption is solved.
Owner:CHINA UNIV OF MINING & TECH

Method and system for controlling rotating speed of fan

The invention provides a method and a system for controlling the rotating speed of a fan. The system comprises a monitoring unit for monitoring the work environment of electronic equipment and further comprises a temperature monitoring module and a power monitoring module, wherein the temperature monitoring module is positioned at an air inlet and an air outlet of the electronic equipment and is used for respectively monitoring and outputting the temperatures at the air inlet and the air outlet; and the power monitoring module is used for monitoring and outputting the power of the electronic equipment; and a control unit is connected with the monitoring unit and the fan and is used for calculating the temperature difference between the air inlet and the air outlet after the temperatures outputted by the temperature monitoring module at the air inlet and the air outlet are received as well as the power of the electronic equipment outputted by the power monitoring module, obtaining the air density in the environment where the electronic equipment is positioned based on the temperature difference, the power and the rotating speed of the fan, and controlling the rotating speed of the fan based on the air density. Therefore, the rotating speed of the fan can be intelligently changed.
Owner:CELESTICA TECH CONSULTANCY SHANGHAI

Method for producing fatty acid by hydrolyzing lipid through three liquid-phase lipase catalytic systems

The invention discloses a method for producing fatty acid by hydrolyzing lipid through three liquid-phase lipase catalytic systems. The method comprises the following steps: firstly, preparing enzyme solution with the lipase concentration of 5-20000 U / mL, and adding soluble inorganic salts, alcohol / ketonic hydrophilic fraction and lipid to the enzyme solution so as to form three liquid-phase systems; secondly, laying the prepared three liquid-phase systems into an agitated vessel for reaction, standing or centrifuging the systems after the reaction so as to divide the systems into an upper layer, a middle layer and a lower layer, and collecting products in the upper layer so as to obtain fatty acid phase. The method adopts the three liquid-phase systems to extract fatty acid in crude enzyme solution, performs direct hydrolyzing to produce fatty acid, can not only greatly reduce the production cost of enzyme, but also solve the problems of high energy consumption for glycerol and enzyme separation, high cost, high pollution and the like.
Owner:SOUTH CHINA UNIV OF TECH

Blast furnace gas dust removing device and technique by dry method

The invention relates to a blast furnace gas dry cloth-bag dust-removing device and technology, belonging to the metallurgy environmental protection dust removing technical field. The blast furnace gas dry cloth-bag dust-removing device and technology mainly comprise devices such as a dust-removing filtering device, an ash-clearing device, a dust-unloading and transporting device, an automatic control device, a gas dispersion device, and technologies such as large filtering wind speed, nitrogen or pure coal gas pulse current back-blowing and ash-clearing, pneumatic unloading and transporting ash and backup for nitrogen and pure coal gas, wherein, coal gas is filtered and purified by a filtering bag, the ash is back-blown by nitrogen or pure coal gas pulse current so as to control the resistance of the dust remover, thereby the filtering bag has the ideal dust removing effect, which is a dry dust-removing purification system having the advantages of high dust-removing efficiency, low dust content of the pure coal gas, low energy consumption of the dust-removing system, high heat efficiency of the pure coal gas and high automation degree; the filtering bag with over-long specification and a biserial pulse back-blowing system are adopted to meet the requirements of the dust-removing system upon a large filtering area and an excellent back-blowing efficiency; a crude gas bleeding valve group is increased to ensure that the coal gas with overproof temperature can not enter to a case of the dust remover, which protects the cloth-bag, controls effectively the high furnace roof pressure and operates the system more safer; the whole course waterless operation is realized so as to prevent the possibility of water containing coal gas dust to paste the filtering bag, thereby having the characteristics of less occupied area, short technology process, strong ability of clearing the ash, simple equipment and low labor intensity.
Owner:BAOTOU IRON & STEEL GRP

Novel process for reclaiming waste water containing CN- and NH3 or NH4-

The invention relates to a method for separating HCN and NH3 for reclamation or realizing standardized discharge from wastewater solution that contains CN<-> and NH3 or NH4<+>, particularly relates to a new technique of resource cyclic utilization of high-salt cyanide and ammonium bearing wastewater, which is represented by cyanuric chloride industry, thus opening a new way of resource cyclic utilization of the high-salt cyanide and ammonium bearing wastewater, which is represented by cyanuric chloride, and providing a totally new clean production technology with simple technique, investment-saving and low operation fee and resource cyclic used feature of the integrated utilization of wastewater that contains the CN<-> and NH3 or NH4<+>.
Owner:BEIJING ZIGUANG YINGLI CHEM TECH CO LTD +1

Flotation separation technology for high-sulfur lead-zinc ore in high-concentration environment

The invention discloses a flotation separation technology for high-sulfur lead-zinc ore in a high-concentration environment. The flotation separation technology aims at high-sulfur lead-zinc sulfide ore containing associated gold and silver, and flotation of lead and associated gold and silver minerals is preferentially carried out in a high-concentration and neutral natural pH flotation environment; and lead-flotation tailings are subjected to two-stage rough flotation so as to realize bulk flotation of zinc-sulfur minerals, the pH value and the potential of ore pulp are regulated and controlled by adopting lime in the zinc-sulfur separation flotation process so as to realize zinc-sulfur separation, and a small amount of activating agents and collecting agents are added to strengthen flotation of zinc minerals difficult to float. According to the flotation separation technology, the defects that in the lead flotation process of high-alkali mediums, the recovery rate of lead, gold andsilver is low, the usage amount of agents is large, the floatation process is not stable, and the like can be overcome; and meanwhile, a zinc-sulfur mineral inhibitor XKK012 and a lead-gold-silver collecting and frothing agent XKY712 are invented, so that the problems that the lead-zinc-sulfur separation efficiency is low, the separation precision is poor, and the hydrophobic capacity of part of lead-gold-silver minerals is weak can be solved, and the technology has the advantages of being energy-saving, environment-friendly, non-toxic, harmless, low in beneficiation cost, high in recovery efficiency and suitable for comprehensive recovery of valuable metal minerals in the high-sulfur silver-lead-zinc-contained ore.
Owner:WESTERN MINING CO LTD +2

Enteromorpha absorbent and preparation technology thereof

The invention relates to an enteromorpha absorbent and a preparation technology of the enteromorpha absorbent. The preparation technology comprises the following steps of: washing and drying enteromorpha, grinding in a grinder, sieving with a sieve with 40-100 meshes, mixing the obtained enteromorpha dry powder and 0.1-0.5mol / L of sodium chloride or calcium chloride solution according to a mass ratio of 1:150-200, stirring and extracting for 6-8h at the thermostatic waterbath of 25-30 DEG C; and drying filter cakes for 3-4h in a drying oven with the temperature of 60-70 DEG C after decompression suction filtration to obtain the enteromorpha absorbent. The enteromorpha absorbent provided by the invention is applied to adsorption treatment of heavy metal wastewater, and can be used for effectively removing heavy metal ions in the wastewater. The preparation technology is low in cost, simple in a production technology, wide in application range, and safe and non-toxic, and solves the problem of disaster green alga enteromorpha recycling.
Owner:SHANDONG UNIV

Method and equipment for producing C4-C6 diacid low-carbon alcohol ester

The invention belongs to the chemical field, in particular to method and equipment for producing C1-C2 low-carbon alcohol ester of C4-C6 diacid. The method is characterized by comprising the following steps of: adding a catalytic agent, C4-C6 diacid and C1-C2 alcohol to a dispensing kettle, stirring and heating to enable the solid diacid to be dissolved; and then continuously delivering feed liquid to an esterification reactor to carry out esterification reaction under the conditions of a certain pressure, a certain reaction temperature and the like; continuously delivering an obtained esterification reaction mixture to a flash evaporator for flash evaporation; separating out unreacted alcohol and generated water from the upper part of the flash evaporator; discharging the product ester and unreacted raw material acid from the lower part of the flash evaporator; and then rectifying to obtain the C1-C2 alcohol ester of the C4-C6 diacid. The invention has the characteristics of low energy consumption and continuous esterification production, and aims to solve the problems existing in the aspects of long time, high energy consumption and the like in the esterification reaction for traditionally producing the C1-C2 low-carbon alcohol ester.
Owner:SHENYANG POLYTECHNIC UNIV

Method for extracting rare earth from rare-earth-contained apatite ores

Disclosed is a method for extracting rare earth from rare-earth-contained apatite ores. The method includes the following steps of grinding the rare-earth-contained apatite ores, adding concentrated nitric acid or hydrochloric acid, adding ammonia water, ammonium carbonate or ammonium bicarbonate solution after acid decomposition, heating, separating solid from liquid to obtain crude phosphoric acid solution and rare-earth-rich slags; adding concentrated nitric acid into the rare-earth-rich slags, roasting, leaching by adding water, separating liquid from solid to obtained leaching liquid and acidified slags, stacking and abandoning the acidified slags; heating the leaching liquid, adding solid potassium chloride, sodium chloride, ammonium chloride, potassium sulfate, sodium sulfate or ammonium sulfate, and separating liquid from solid while heating to prepare rare-earth sulfuric acid compound salt with rare-earth oxide content higher than 36%. Rare-earth recovery rate is higher than 85%. The method for extracting the rare earth from the rare-earth-contained apatite ores is a method capable of effectively reasonably separating phosphorus from the rare earth and recovering the rare earth, is simple in process and low in cost, solves the problems of high energy consumption and severe pollution and is applicable to the rare-earth-contained apatite ores with REO (rare earth oxide) content ranging from 1.0% to 5.0% and P2O5 content ranging from 25% to 35%.
Owner:广东省科学院资源利用与稀土开发研究所

Device and process for electrolytically extracting copper in acidic etching liquid

The invention provides a device and a process for electrolytically extracting copper in an acidic etching liquid. The device comprises an etching tank, a waste liquid barrel, a copper extraction unit, a dissolving absorption jar and a water absorption jar, wherein the etching tank is connected with the waste liquid barrel which is connected with the copper extraction unit; the copper extraction unit comprises an etching liquid chamber, a regenerated liquid chamber and an electrolytic reaction chamber; the electrolytic reaction chamber is divided into a cathode area and an anode area at an interval by use of a composite high-molecular ionic membrane; the anode area is connected with the dissolving absorption jar by use of an exhaust pipeline, while the cathode area is connected with the water absorption jar by use of an exhaust pipeline; the dissolving absorption jar is in circular connection with the etching tank. The device is reasonable in structure, and the process is complete; the problems of high energy consumption and low reuse rate of electrolytic copper extraction from the acidic etching liquids in the prior art are solved; the quality of the cathode copper is improved, and meanwhile, material waste is reduced and the reuse rate is increased.
Owner:KUNSHAN MEIYUANDA ENVIRONMENTAL PROTECTION TECH

Method and device for data processing

The invention discloses a method and a device for data processing, and relates to the field of terminal application. The method and the device can solve problems that AP and Modem integrated energy consumption cannot be obviously reduced in mobile equipment. The method comprises: receiving a data package sent by a server, acquiring the type of the data package; determining whether the type of the data package conforms to the type of a data package processed by a preset processing law or the type of a protocol in a preset TCP / IP protocol stack, and obtaining a determining result, the preset TCP / IP protocol stack being formed by a transmission layer protocol group in the TCP / IP protocol family and / or a network layer protocol group, the data package processed by the preset processing law being a state data package, the state data package being used for indicating online state of a terminal; if the type of the data package conforms to the type of the data package processed by the preset processing law or the type of the protocol in the preset TCP / IP protocol stack, processing the data package according to the protocol in the preset TCP / IP protocol stack or the preset processing law. The method and the device are mainly applied in processes of mobile device data processing and transmission.
Owner:HUAWEI DEVICE CO LTD

Intensification method and device for continuous banburying process of high polymer materials based on eccentric helix

The invention discloses an intensification method and a device for a continuous banburying process of high polymer materials based on eccentric helix. The method utilizes two helical rotors which are eccentric with a rotating axis thereof rotating in a heterodromously meshing mode. The period of the internal clearance between each rotor and the inner wall of a stator, and the periods of the radial meshing clearance and the axial clearance between two rotors clearance change from big to small and then from small to big. The method enables materials to be intensified during the axial circulation continuous banburying process of the two rotors. The helical axises of the two helical rotors are fixed in a mutually parallel mode. An outer surface of the rotors is in an eccentric meshing type convex-edge structure, wherein a certain eccentric quantity exists between the central axis and the rotating axis of each rotor. When the two rotors rotate in an inner meshing mode, contained materials are plasticized and extruded to convey along with the period change of the internal clearance between each rotor and the inner wall of a stator, the radial meshing clearance and the axial clearance between two rotors clearance so as to achieve an intensive banburying effect. The intensification method and the device for the continuous banburying process of high polymer materials based on the eccentric helix can achieve the continuous banburying process of high polymer materials, and have the advantages of improving the production efficiency and the product quality, and meanwhile reducing the energy consumption and the like.
Owner:SOUTH CHINA UNIV OF TECH +1

Energy-saving-oriented high-reliability data storage method in data center environment

The invention discloses an energy-saving-oriented high-reliability data storage method in a data center environment, aiming at solving the technical problem that a hybrid high-reliability data storage method is provided under the condition of an energy-saving-oriented closed node. In the method, a large number of nodes are allowed to be closed so as to reduce power consumption, and at least one copy of all data is ensured to be stored on active nodes, thus availability of the data is kept. The method comprises the following steps of: firstly dividing clusters and numbering nodes in racks to form logical rings as well as numbering the nodes among the racks to form mutually non-intersected rings; then dividing files to be stored and determining backup quantity of data; and determining a copy placement position of each data block in a queue by adopting a hybrid data storage method. In the method, large-scale node closure and reduction of the power consumption can be supported, reliability of the data can be ensured, and data recovery capability is strong, thus the problems of the energy consumption of a data center and the reliability of the data are effectively solved.
Owner:NAT UNIV OF DEFENSE TECH
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